The core secret of Bitcoin is actually the positive feedback of the interaction between 1/the value increase brought by network effects (price increase) and 2/the increase in the number of users due to the increase in price (digital gold promise is effective). This positive feedback was valid until better competitors emerged in Bitcoin. In the previous round, Ethereum became a competitor to Bitcoin, which gave rise to the concept of flip Bitcoin. However, no one has mentioned this anymore, and it can be said that Ethereum has been eliminated from the value storage track. So, the decline of Ethereum is positive for Bitcoin, as it once again proves its uniqueness. The only competitor to Bitcoin is gold. When will Bitcoin encounter problems? When the above positive feedback is broken - when users no longer grow, it is when the value of Bitcoin begins to shrink. Under what circumstances will growth stop? Currently, there are only 13 million addresses with a value of 0.01 BTC (800 USD) or more, while the middle class on Earth is estimated to be around 1.5 billion. So, we are still early.