This article discusses how Satoshi Nakamoto’s original vision for Bitcoin, which emphasized CPU-based mining, has become obsolete due to the evolution of mining practices and the rise of mining pools.

Today, each line of Bitcoin code is worth as much as $20 million. This astonishing difference prompted me to explore the reasons behind it, and ultimately concluded that the high value of Bitcoin code lies in its inherent "consensus creation ability" and "growth vitality", which is the fundamental reason why it is different from traditional Internet code.

The abstract understanding of this question is: How can we use a mechanism to make all parties reach a consensus and form an order in a chaotic and disordered state? That is, to reach a consensus!

After some research, I found that BTC Layer2 seems to be a false proposition, because Bitcoin does not need Layer2 at all, but the Crypto industry needs Bitcoin; and Layer2 itself is just a business, not a blockchain at all; the most critical problem is that Layer2 cannot help the main chain expand its capacity at all, it just finds some application scenarios for the main chain tokens, and these scenarios are copied from Layer1 without any innovation.

Is Ethereum really on the decline? Is it hard to recreate its former glory?

The current status of Bitcoin Layer2 is: those that have been listed have performed poorly, and those that have not been listed have a mediocre development.