Looking through the on-chain data of $BTC, I always find myself lost in thought.

On January 3, 2009, block height 0 was born. The timestamp records 00:00, with a total supply of 50 coins. Satoshi Nakamoto completed the first mining, and the Bitcoin network officially launched from that moment. At that time, no one knew what it meant, and no one cared.

A week later, on January 9, things began to change. Satoshi Nakamoto released the source code of Bitcoin Core v0.1 on the mailing list. From that day on, anyone with a computer willing to tinker could download the program and participate in mining. On-chain data shows that the total supply rapidly increased to 750 coins.

Even more interesting is January 10. Hal Finney posted a message on Twitter: "Running bitcoin." These three simple words marked the first time in human history that a second person successfully ran the Bitcoin network. He started mining, and the network's hash rate curve bent upward. By January 11, the total supply had skyrocketed to 8,450 coins.

The early mining situation can be summarized in one sentence: using ordinary home CPUs, with difficulty close to 1, a single person could mine thousands of coins in a day. At that time, the total network hash rate was equivalent to just a few home computers' computing power. Imagine, that was the scale of the entire Bitcoin network back then.

The turning point came half a year later. On July 22, 2009, on-chain data showed that the total supply first surpassed 1 million coins. That day, there were no fireworks, no news, and no one realized that a milestone was happening.

Why mention this past event? Honestly, I feel a bit emotional. Back then, I was busy playing online games every day, completely unaware of what was happening around me. If I had even a little awareness at that time, I could have mined while playing games... but those are all after-the-fact reflections.

Missed opportunities can never be regained; the only thing we can do is learn lessons from history.