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BTC Lightning Network

The Lightning Network and the Future of Instant Bitcoin Transactions

Introduction: Unleashing Speed and Efficiency in Bitcoin Transactions

In the ever-evolving landscape of cryptocurrency, transaction speed and cost efficiency are critical factors that can determine the success of a digital currency. The Lightning Network emerges as a potential game-changer for Bitcoin, tackling the scalability issues of this pioneering cryptocurrency. Imagine a world where paying for your morning coffee with Bitcoin involves minimal fees and instantaneous confirmations rather than the typical ten-minute wait and exorbitant transaction costs. Such possibilities make the Lightning Network not only relevant but crucial in our ongoing journey toward a more efficient financial ecosystem, especially as decentralized finance (DeFi) becomes increasingly prominent across the globe. In this lesson, we will delve into the workings, implications, and potential future of the Lightning Network, all while exploring how it fits into the Crypto Is FIRE (CFIRE) training program.

Lightning Network Basics: A Step Towards Scalability

The Lightning Network is an off-chain layer-2 solution designed to enhance Bitcoin’s transaction capabilities. As introduced, Bitcoin can only process about seven transactions per second, with fees reaching astronomical prices when the network is congested. A striking analogy is presented: consider paying a $50 fee to confirm a simple coffee purchase. In stark contrast, traditional financial networks like Visa boast capabilities of processing over 50,000 transactions per second at lower costs.

At its core, the Lightning Network allows for multiple transactions to occur off the main blockchain, thereby significantly reducing the fee burden on users. The concept is akin to a tab at a bar, where multiple transactions are settled at once rather than each one incurring a separate fee. By establishing payment channels, users can engage in numerous off-chain transactions and subsequently settle only the net result on the Bitcoin blockchain. This mechanism not only reduces cost but also retains the decentralized essence of Bitcoin, marking a significant leap in its functionality.

Critical Analysis of the Lightning Network

The Lightning Network shines in several dimensions, offering compelling reasons for its growing adoption:

  1. Cost Efficiency: One of the strongest points made is the dramatic reduction of transaction fees. In real-world use cases, a user can pay one fee for multiple transactions, preserving funds that would otherwise have been lost to transaction fees. This efficiency could make Bitcoin a more attractive payment option, even in everyday scenarios.

  2. Scalability: By offloading transactions from the main blockchain, the Lightning Network has the potential to scale Bitcoin’s capabilities to handle millions of transactions per second. This is a substantial improvement over the current limits, addressing one of the most critical pain points associated with Bitcoin adoption.

  3. Instant Transactions: With typical Bitcoin transactions potentially taking ten minutes or longer, the instant confirmation characteristic of the Lightning Network can ultimately redefine user experiences. A world where funds are readily available removes a psychological and practical barrier for merchants and consumers alike.

However, despite these strengths, some criticisms warrant discussion:

  • Complexity of Implementation: For the average user, the technical intricacies of setting up and managing payment channels can be daunting. The necessity of understanding multi-signature wallets and payment channels may deter less tech-savvy users from fully engaging with the Lightning Network.

  • Liquidity Concerns: Transactions are reliant on sufficient liquidity within payment channels to facilitate payments. If a user wishes to send Bitcoin to someone without a direct channel, they are dependent on the existing channels’ capacity, which could pose limitations during peak times or for larger transactions.

  • Centralization Risks: As with any technology, the implementation of the Lightning Network could lead to centralization if a limited number of nodes or exchanges dominate the network. Such a situation could compromise some of the decentralization ideals espoused by proponents of Bitcoin.

These considerations remind us that while the Lightning Network offers exciting advancements, questioning its viability, accessibility, and potential risks is crucial.

Connections to Cryptocurrency and Blockchain

Examining how the Lightning Network intertwines with the broader cryptocurrency ecosystem reveals its critical role in enhancing Bitcoin’s utility. The concept of transactions moving through a network of interconnected payment channels parallels current DeFi constructs, where decentralized applications (dApps) facilitate myriad transactions without engaging the blockchain directly.

For instance, projects like the Liquid Network enhance Bitcoin’s functionality for traders and exchanges by enabling faster and private transactions. Furthermore, similar networks are emerging within Ethereum’s ecosystem, showcasing how the ethos behind layer-2 solutions resonates across different blockchain platforms.

Moreover, as DeFi continues to burgeon, the Lightning Network could play a pivotal role by providing fast and low-cost transactions for decentralized lending, swapping, and yield farming. Projects like Lightning Labs are already investigating protocols that could further enhance interoperability between Bitcoin and other decentralized finance platforms, making it feasible for users to leverage Bitcoin in an already established DeFi landscape.

Broader Implications and Future Outlook

The implications of the Lightning Network extend beyond merely facilitating faster transactions. With an enhanced Bitcoin payment mechanism, we could potentially see a greater acceptance of cryptocurrencies in mainstream commerce, blurring the lines between fiat and digital currencies. As people adopt and utilize Bitcoin for everyday transactions—such as buying coffee or groceries—the mainstream perception of cryptocurrencies could shift from speculative assets to viable methods of exchange.

In the grander scheme, if the Lightning Network achieves its ambitious scalability goals, it could redefine existing financial infrastructures. Emerging technologies, particularly blockchain, stand poised to disrupt conventional financial systems by delivering decentralized solutions that bypass traditional intermediaries. This could invite a future where applications offer seamless financial experiences, characterized by immediacy, affordability, and autonomy.

Personal Commentary and Insights

In my view as a financial expert, the Lightning Network represents a profound potential shift in how we perceive Bitcoin and cryptocurrency as a whole. Its ability to streamline transactions brings us closer to a more user-friendly crypto experience. However, it’s essential to recognize that education around these technologies must develop concurrently with their adoption. The heightened complexity of wallets and payment channels could inhibit adoption if not addressed through user-friendly interfaces and tools.

Moreover, as we embrace the Lightning Network’s promises, we must remain vigilant about its downfalls and address challenges related to centralization and liquidity. Similar to how the internet evolved over time with user adoption, so too will this space need to iterate to meet user demands while adhering to its fundamental principles.

Conclusion: A Bright Future Awaits

The Lightning Network embodies the potential to revolutionize how we transact with Bitcoin, offering unprecedented speed and affordability. By ushering in a new era of cryptocurrency transactions, it speaks to the transformative potential that digital currencies can introduce. As the world continues to join the digital finance movement, the Lightning Network stands as a beacon of innovation, demonstrating that even the original cryptocurrency can adapt to meet modern challenges.

As we continue in this Crypto Is FIRE (CFIRE) training program, it is essential to keep exploring these technologies and appreciate their broader implications for the future of financial transactions.

Quotes:

  • “The Lightning Network is an off-chain ledger for Bitcoin to keep transaction fees low and faster than the actual Bitcoin blockchain.”
  • “By establishing payment channels, users can engage in numerous off-chain transactions and subsequently settle only the net result on the Bitcoin blockchain.”
  • “A world where funds are readily available removes a psychological barrier for merchants and consumers alike.”

Continue to Next Lesson

As we move forward, let us uncover more facets of cryptocurrency and blockchain technology, delving into how they continue to reshape our financial landscape. Stay tuned for the next lesson in the Crypto Is FIRE (CFIRE) training program!

 

 

Understanding the Lightning Network: Transforming Bitcoin Transactions

The Lightning Network is revolutionizing the way Bitcoin transactions occur, addressing the limitations of traditional transaction methods. As Bitcoin’s popularity surges, so do its transaction fees and processing times. Understanding the Lightning Network is not only crucial for grasping the future of Bitcoin but also reveals how cryptocurrencies can evolve to meet growing demands—especially when compared to traditional financial systems known for their speed and efficiency.


Core Concepts – Lightning in a Bottle: How the Lightning Network Transforms Bitcoin Transactions

1. Lightning Network

Definition: An off-chain solution that facilitates faster and cheaper transactions for Bitcoin.

Traditional Finance Parallel: Similar in function to payment channels in traditional banking, like credit accounts that allow for instantaneous transactions without processing delays.

Relevance: Newcomers need to understand that the Lightning Network enables Bitcoin to compete with faster payment systems such as Visa.

2. Payment Channels

Definition: Private channels created between two users allowing multiple transactions without incurring individual fees.

Traditional Finance Parallel: Reflects the idea of a bar tab, where costs accumulate until final settlement, much like credit card transactions that settle later.

Relevance: Understanding payment channels helps users appreciate how the Lightning Network enhances transaction efficiency.

3. Off-Chain Transactions

Definition: Transactions that occur outside the main Bitcoin blockchain, reducing congestion and fees.

Traditional Finance Parallel: Like bank transfers processed without recording every single transaction in a public ledger.

Relevance: This concept is key to realizing how cryptocurrencies can scale beyond their limitations, making them more usable in daily life.

4. Multi-Signature Wallets

Definition: Wallets requiring multiple signatures to authorize a transaction, enhancing security.

Traditional Finance Parallel: Similar to joint accounts in banks that require multiple parties to approve transactions.

Relevance: A vital component for the security of transactions within the Lightning Network.

5. IOUs and Settlements

Definition: A form of accounting that tracks debts between parties without transferring Bitcoin until final settlement.

Traditional Finance Parallel: Comparable to settling accounts at the end of a billing cycle.

Relevance: Understanding IOUs is crucial for appreciating how the Lightning Network maintains liquidity without frequent blockchain updates.

6. Routing Payments

Definition: The process of sending funds from one party to another through multiple intermediaries.

Traditional Finance Parallel: Similar to how international wire transfers operate, passing through different banks for currency conversion.

Relevance: Grasping this concept is essential for understanding how interconnected crypto systems can function efficiently.

7. Scalability

Definition: The capability of a system to handle an increasing amount of transactions by upgrading its capacity.

Traditional Finance Parallel: Like banking systems that expand their infrastructure to accommodate more users.

Relevance: Scalability is critical for ensuring that Bitcoin can support future growth as a digital currency.


Key Sections

The Problem with Bitcoin Transactions

  • Bitcoin is limited to about 7 transactions per second.
  • High fees, sometimes reaching up to $50, discourage small purchases.
  • Comparatively, Visa handles over 50,000 transactions per second at low fees.

Detailed Explanation: The limitations of Bitcoin stem from its blockchain capacity, resulting in a bottleneck during peak times when demand rises. As every user competes to get their transaction validated, the fees surge, essentially pricing out users making small transactions.

Parallels: Unlike Bitcoin, which struggles during peaks, traditional systems like Visa have established infrastructures to handle massive volumes efficiently.

Importance: This section sets the stage for understanding why the Lightning Network is essential for Bitcoin’s future use as a currency.

Crypto Connection

The Lightning Network aims to alleviate Bitcoin’s scalability issues by allowing transactions to occur off-chain, which means Bitcoin can behave more like traditional payment systems such as Visa, therefore appealing to everyday consumers.


How the Lightning Network Works

  • Creation of a payment channel between participants.
  • Multiple transactions can occur without incurring fees until final settlement.
  • Individuals can transfer funds through interconnected channels.

Detailed Explanation: The Lightning Network functions similarly to establishing a tab at a bar, where transactions are recorded but not settled until later. Each participant freely exchanges funds within their channel, accumulating interactions without burdening the Bitcoin blockchain.

Parallels: This can be likened to tallying expenses among friends until they settle up at the end of the night.

Importance: Understanding this process is essential for recognizing the innovative solutions offered by blockchain technology to enhance Bitcoin’s transactional capabilities.

Crypto Connection

The efficiency of payment channels allows for seamless transactions, enabling peer-to-peer payments that make Bitcoin feel more like cash in hand—beneficial for consumers accustomed to immediate processing.


Transaction Routing and Interconnectedness

  • Payments can be routed through multiple channels even without a direct connection.
  • This network capability echoes how information travels in traditional financial networks.

Detailed Explanation: Imagine sending a payment to someone across the Lightning Network. Instead of needing a direct channel, the network finds the most efficient route—even if that means hopping through several intermediary wallets.

Parallels: This concept mirrors the way international bank transfers may involve several banks and currencies to facilitate the transaction.

Importance: Understanding the routing of payments further illustrates how efficiently the Lightning Network can handle transactions, making it a scalable solution.

Crypto Connection

Just like in traditional finance where a wire transfer may go through several banks, the Lightning Network allows funds to travel between multiple nodes, minimizing the time and cost associated with Bitcoin transactions.


Benefits vs. Challenges

  • The Lightning Network reduces fees and speeds up transaction confirmations.
  • However, it requires participants to understand payment channels and their implications.

Detailed Explanation: While the Lightning Network presents a robust solution to Bitcoin’s transaction speed and cost issues, users must understand how to navigate payment channels—and the need to trust the network of connected participants.

Parallels: Just like how a new banking app may have learning curves, new users to the Lightning Network will also have to become familiar with its mechanics.

Importance: Recognizing both benefits and challenges empowers new users to better engage with the technology.

Crypto Connection

The trade-off lies in balancing efficiency with user comprehension. As more newcomers engage with cryptocurrencies, education surrounding the Lightning Network will be critical for adoption.


Real-World Applications

Historically, Bitcoin has been limited by slow processing and high fees, discouraging its use as a widely accepted currency. Enter the Lightning Network, which offers a promising remedy. The prospect of making Bitcoin as viable for everyday transactions as the cash in our wallets is intriguing.

Real-World Example: Major coffee chains and retailers exploring Bitcoin payments are considering integrating Lightning Network technology, which could fast-track Bitcoin as an accepted medium of exchange in everyday life.


Cause and Effect Relationships

The reliance on high transaction fees and slow confirmation times creates a feedback loop, discouraging microtransactions. In contrast, the adoption of the Lightning Network can break this cycle by enabling small, frequent transactions without prohibitive costs.

Crypto Dynamics: As adoption increases, the demand for efficiency also grows, pushing further innovations within cryptocurrency ecosystems.


Challenges and Solutions

Challenges:

  • Technical understanding: Users may struggle to grasp payment channels and routing.
  • Trust in the network: Users must rely on multiple parties to complete transactions.

Unique Solutions:

  • Extensive educational resources and community support can help newcomers adapt.
  • Trust can be built through awareness of how decentralized networks operate, emphasizing security protocols.

Common Misconceptions: Newcomers often fear volatility within the crypto market; however, utilizing the Lightning Network for daily transactions could stabilize usage and foster confidence.


Key Takeaways

  1. Understanding Limitations: Recognize Bitcoin’s transaction bottlenecks and their implications for daily users.
  2. Lightning Network’s Role: Realize how it facilitates off-chain transactions, making microtransactions feasible.
  3. Payment Channels: Appreciate how individual accounting models function similarly to real-world bar tabs.
  4. Routing Efficiency: Learn how interconnected payment channels enable cost-effective transactions.
  5. Adoption Considerations: Acknowledge the ongoing progress and potential barriers as the Lightning Network gains traction.
  6. Long-Term Vision: Understand how scalability impacts Bitcoin’s potential trajectory in the finance ecosystem.
  7. Education is Key: Familiarity with the system empowers users to leverage the network effectively.

Discussion Questions and Scenarios

  1. How can the existing limitations of Bitcoin transaction speeds affect its adoption for everyday purchases?
  2. In what ways does the Lightning Network enhance Bitcoin’s usability compared to traditional payment systems?
  3. What challenges might a coffee shop face when integrating Lightning Network transactions?
  4. Compare the user experience of making a payment directly on the Bitcoin blockchain to a payment made through the Lightning Network.
  5. Imagine a future where most merchants accept Bitcoin via the Lightning Network; what could that mean for the fiat currency system?

Glossary

  • Lightning Network: An off-chain protocol to facilitate faster, cheaper Bitcoin transactions.
  • Payment Channels: Agreements between users allowing multiple transactions without individual fees.
  • Off-Chain Transactions: Transactions occurring outside the main blockchain to alleviate congestion.
  • Multi-Signature Wallets: Wallets requiring approval from multiple parties to authorize transactions.
  • IOUs: An accounting method to track debts between parties until final settlement.
  • Routing Payments: The pathway through which funds are transferred across multiple channels.
  • Scalability: The system’s ability to expand and handle increasing transaction volumes.

With your newfound understanding of the Lightning Network, you’re well-equipped to navigate both the intricacies of Bitcoin transactions and their broader implications in the world of finance. Embrace this knowledge as you continue your journey in the Crypto Is FIRE (CFIRE) training program, and prepare for the thrilling lessons ahead!

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Dive deeper into the enchanting world of cryptocurrencies and blockchain technologies, and keep building your financial acumen!

 

Read Video Transcript
Bitcoin’s Lightning Network, Simply Explained!
https://www.youtube.com/watch?v=rrr_zPmEiME
Transcript:
 Many people believe that Bitcoin is the future of our financial system.  But there is a big issue standing in the way of this goal and that is scalability.  Let me give an example.  The payment provider Visa processes on average around 4000 transactions per second and can  scale up to a maximum of 65000.
 Bitcoin on the other hand can handle up to 7 transactions per second with the current  block size of 1 megabyte.  Not tens of thousands, but just 7.  Clearly the main blockchain isn’t very scalable.  But it doesn’t have to be.  The community has come up with a new technique called the Lightning Network to solve the  scalability issues.
 The key idea is that small and everyday transactions don’t have to be stored on the main blockchain.  This avoids the 7 transactions per second limit and is also called the off-chain approach.  So how does it work?  Well let’s take a look at an example.  Let’s say that every morning Bob buys a cup of coffee on his way to work.
 Creating a transaction on the blockchain for a simple coffee is really overkill.  He might end up paying more fees than the actual price of his coffee.  However, with the Lightning Network, Bob can set up a payment channel with the coffee shop.  To do that, both the coffee shop and Bob deposit a certain amount of Bitcoin  in what is called a multi-signature address.
 Let’s assume that Bob deposits 0.05 Bitcoin and that the coffee shop deposits nothing  because they don’t offer refunds.  This multi-signature address is basically like a safe that can only be opened when both  parties agree.  When we open the payment channel we also make a balance sheet that says how the funds in  the address should be distributed.
 So right now it says that Bob will get 0.05 bitcoin and that the coffee shop will get  0 bitcoin, the same as they deposited.  Opening the payment channel happens on the main blockchain so that there is full transparency.  The coffee shop owner can see that Bob has deposited 0.05  Bitcoin and he can rest assured that he will get his money once the channel closes.
 Now that the channel is open, Bob can order his morning coffee. Let’s say that a coffee cost 0.001  Bitcoin. To pay for it, Bob simply changes the balance sheet. He subtracts the cost of a coffee from his balance and adds it to the coffee shop’s  balance.  So now it says that Bob will get 0.045 bitcoin and that the coffee shop gets 0.005 bitcoin.
 Bob and the coffee shop now sign the updated balance sheet with their private keys.  They then each keep a copy of it but they don’t do anything else with it.  Bob can keep ordering coffee for as long as he has a balance in the payment channel.  Both of them can make hundreds of thousands of transactions between them.
 There is really no limit because this happens away from the main blockchain.  But all good stories come to an end.  The payment channel can be closed at any time by either Bob or the coffee shop.  All they have to do is take the latest balance sheet, which was signed by both parties, and  broadcast it to the Bitcoin network.
 Miners will then validate the signatures on the balance sheet and, if everything checks  out, release the funds according to the balance sheet.  This will create a single transaction on the Bitcoin blockchain.  So the Lightning Network can significantly reduce the load on the main blockchain.  It only requires two transactions on the blockchain, one to open the payment channel and another  one to close it.
 It’s also very safe.  The system ensures that only the latest signed balance sheet can be used to unlock the money.  And because both parties have a signed copy of the balance sheet, they can release the  funds at any time, even if the other one doesn’t want to cooperate anymore.  So for example, Bob cannot hold the money hostage that belongs to the coffee shop, and  vice versa.
 But it doesn’t end there.  You don’t need to open a direct payment channel with everyone you want to send bitcoins  to.  You can simply use the network to pass your coins around.  Here is Alice.  She is a friend of Bob.  They have exchanged money on the lightning network before, so they have an active payment  channel.
 Now let’s say that Alice wants to buy a coffee.  Instead of opening a direct channel to the coffee shop, she can transfer the money to  Bob who will then transfer it to the coffee shop.  So there is no need to create a payment channel with everyone.  In the Lightning Network, your payment tries to find a route from person A to person B  and it tries to do this with the least amount of intermediates and the  least amount of fees.
 This further reduces the strain on the blockchain, but it requires the intermediates to have  enough money in their payment channels.  So now you know what the Lightning Network is and how it works, but when will it actually  go live?  Well, right now there is a proof of concept implementation running on the Bitcoin testnet.
 We don’t know yet when it will go live for everyone, but chances are it happening in  2018.  So that was it for this video.  If you liked it, hit the thumbs up button and get subscribed.  Thank you very much for watching and I’ll see you in the next video!

 

What is the Lightning Network? (

 So what is the  Lightning Network? In short, the Lightning Network is an off-chain ledger for Bitcoin  to keep transaction fees low and faster than the actual Bitcoin blockchain. It is technically  considered a layer 2 solution to help scale Bitcoin. So before we dive too deep into this, you need to know some basics  about Bitcoin. First, Bitcoin is coded to only perform around 7 transactions per second.

 This  means only the transactions from the senders who pay the highest fees will get validated.  And since Bitcoin is very popular, the fee to be included in the blockchain block has been up to  $50 in the past.  Imagine paying for your coffee and they tell you there’s a $50 fee.  And oh yeah, to stay true to the analogy of Bitcoin, imagine it would take 10 minutes  before your purchase was confirmed, because that’s how long a Bitcoin block takes to be  validated.

 So these are some major problems.  Visa, on the other hand, which has been used for a few years now at major retailers, can  process up to over 50,000 transactions a second, and their fees are very low.  They are also immediate.  This is a reason you can pull your card out and swipe it at the grocery store or your local coffee shop.

 It’s quick, it’s easy, and it’s cheap to use.  That is the major problem that the Lightning Network tries to solve, though.  Let me go through an example really quickly so you can understand roughly how the Lightning Network works.  Let’s say you go to the bar and you buy a drink.  You pay for it, including the Bitcoin transaction fee.

 And maybe that night it was around $20.  As the night comes to an end, you’ve bought six drinks  and you’ve paid the transaction fee six times,  which the transaction fee was more than the drinks.  But you’re six drinks in, so it doesn’t really matter much to you.  Well, a week later, you come doesn’t really matter much to you.

 Well, a week later, you come back to the bar ready to tackle the beast,  because this time you’re aware of what the bar did to your Bitcoin wallet.  You tell the barkeep,  keep track of how many I order and charge me for them all at once at the end of the night.  Oh yeah, add something in a little extra for yourself too.

 This is the idea of a bar tab, and this is exactly how the Lightning Network works.  Now, you only have to pay one single transaction fee, instead of a whole bunch. Alright, alright, that example only used two  participants, you and the barkeep.

 Let’s go over another example with a few different participants,  because that’s the benefit of using the Lightning Network. Let’s say I come into a coffee shop,  and I buy a $10 coffee, because some big name brands out there apparently like to use gold  in their espresso, and I decide to pay with Bitcoin.

 Well, because of this, the fee is $20, so I pay $30 for my $10  coffee. A few days later, the coffee shop decides to pay its workers using Bitcoin. It pays them  $500 in Bitcoin each, but it also pays the $20 fee. Then one of the workers goes to a local  grocery store with their new Bitcoin and pays for some fruits.  Probably some apples, potatoes, or pineapples.  At least if they watched any of our other videos.

 They spend $20 of their Bitcoin and pay a $20 fee.  Lucky for me, I actually work at that grocery store.  So I tell the grocery store I want to be paid in Bitcoin and they decide to try it out.  They pay the $20 fee even though they only subtracted it from my pay.  Now, so far in this list of transactions, we have a $10 transaction, a $500 transaction, a $20 transaction, and then lastly,  another $500 transaction.

 And in each of these, we’ve paid a $20 fee each time, which totals to  $80 in fees. Well, when we think about it, where did some of that money come from and where did  it go? Some of it came from me and eventually made its way back around to me, at least $10 of it. What if there was a way I could  have just kept my initial $10 and avoided those high fees? Well, this is the idea of the Lightning  Network.

 It goes, hey, Bitcoin transactions are really expensive right now and pretty slow,  so how about you give us your Bitcoin and we’ll keep a record of how much you have based on your  transactions on our cheaper and faster network. Then, when you want real Bitcoins, just let us know and we’ll mark our own records  and send you a real Bitcoin. This way, you only pay us once and we only pay you once.

 That’s essentially how it works. You and someone else deposit money into a multi-signature wallet  and create what is called a payment channel. In this payment channel, you and someone else can  send money back and forth, back and forth, back and forth, until you decide to settle up and square up the payment channel with the main  Bitcoin blockchain. Basically, you’re creating a bunch of IOUs off of the blockchain.

 Then,  when both parties agree to finalize all transaction, you put one single transaction  on the blockchain. Now, you might be wondering at this point, wouldn’t it be expensive and tiring  if I had to open up a whole bunch of payment channels every time I wanted to pay someone or get paid? Well, that’s a good question.

 However, think back to our coffee shop example. What if all of that was off-chain and I basically  just kept my $10 IOU instead of the money gathering fees going from me to the coffee shop to the  worker to the grocery store and then back to me? I mean, essentially that $10 is where it was in  the first place. Well, it’s called the Lightning Network, and it works very similar to the way that a lightning bolt looks.

 Using a system  of payment channels, we can move money around in between people who already have payment channels.  For example, let’s say I wanted to send you a payment for clicking the like button on this  video. However, there’s not a payment channel between both of us. But, we both have a payment  channel open with Coinbase though.

 So I tell the network I want to pay you $20 and it’ll route that $20 from me to  Coinbase and then from Coinbase to you. So basically I paid you even though we  used Coinbase as an intermediary. Well imagine a network with 100,000 people to  where it’s all interconnected and once you join that network you can send your  IOU version of a Bitcoin almost instantly, almost free, and very easily.