I’ve previously mentioned that I wasn't entirely convinced about the future of Bitcoin. To put it briefly, my argument was that even with the Lightning Network, there are inherent limitations to Bitcoin evolving into a global-scale payment solution. I was curious to see how Bitcoiners would respond to this, but at the time, I received no answers, which led me to believe it might be an unsolvable problem.
However, I recently started looking into Layer 2 solutions other than Lightning, and I found one that seems quite promising: the Ark protocol. While it’s impossible to explain exactly how it functions in a single post, the conclusion is that it appears to effectively address the limitations of Lightning.
Based on my understanding of their documentation, here is how the UX of Ark works:
Off-chain payments do not provide the same level of finality as Lightning immediately. To achieve Lightning-level finality—meaning no one can touch my funds, and I am cryptographically guaranteed a unilateral exit to Layer 1 without relying on anyone else—I must participate in what is called a 'batch settlement transaction.' This is an on-chain transaction that anchors to Layer 1 to achieve finality.
One might ask, 'If it requires an on-chain transaction, how is this a scaling solution?' The key is that this batch settlement transaction involves multiple people simultaneously, allowing the fees to be shared among them. Furthermore, the size of this batch transaction does not scale proportionally with the number of participants; it remains a fixed size.
In other words, it is an on-chain transaction that enables true 1/n cost efficiency. With Lightning, the decisive obstacle to global scale is that when you open a channel, you have to pay for that on-chain transaction yourself. Ark solves this by allowing for massive, shared efficiency. If this becomes fully realized, it is theoretically possible to achieve self-custody without ever needing to make an on-chain transaction in your lifetime.
This is made possible through Taproot and other technical mechanisms, and based on my current knowledge, it seems theoretically sound. While it still requires code-level verification, this discovery has resolved my only lingering doubt about Bitcoin. I now have genuine hope that it can function as a global-scale payment solution.
However, I recently started looking into Layer 2 solutions other than Lightning, and I found one that seems quite promising: the Ark protocol. While it’s impossible to explain exactly how it functions in a single post, the conclusion is that it appears to effectively address the limitations of Lightning.
Based on my understanding of their documentation, here is how the UX of Ark works:
Off-chain payments do not provide the same level of finality as Lightning immediately. To achieve Lightning-level finality—meaning no one can touch my funds, and I am cryptographically guaranteed a unilateral exit to Layer 1 without relying on anyone else—I must participate in what is called a 'batch settlement transaction.' This is an on-chain transaction that anchors to Layer 1 to achieve finality.
One might ask, 'If it requires an on-chain transaction, how is this a scaling solution?' The key is that this batch settlement transaction involves multiple people simultaneously, allowing the fees to be shared among them. Furthermore, the size of this batch transaction does not scale proportionally with the number of participants; it remains a fixed size.
In other words, it is an on-chain transaction that enables true 1/n cost efficiency. With Lightning, the decisive obstacle to global scale is that when you open a channel, you have to pay for that on-chain transaction yourself. Ark solves this by allowing for massive, shared efficiency. If this becomes fully realized, it is theoretically possible to achieve self-custody without ever needing to make an on-chain transaction in your lifetime.
This is made possible through Taproot and other technical mechanisms, and based on my current knowledge, it seems theoretically sound. While it still requires code-level verification, this discovery has resolved my only lingering doubt about Bitcoin. I now have genuine hope that it can function as a global-scale payment solution.