After I understood the potential of $BTC , I decided not to pay social security fees, but to invest the money in Bitcoin.

I considered two investment strategies:

1. **Regular investment**: Invest 1,000 yuan per month to buy Bitcoin, transfer the Bitcoin to my wallet every year, and stick to it for 20 years. This money will serve as my pension, and I will not touch it during this period. After retirement, I will sell part of the Bitcoin every month for living expenses.

2. **One-time investment**: Invest 240,000 yuan in Bitcoin at one time, and then transfer the Bitcoin to my wallet and keep it properly. Similarly, after retirement, I will sell part of the Bitcoin every month for living expenses.

According to the National Council for Social Security Fund, the average annual investment return rate of the social security fund since its establishment is 7.66%. If the average annual increase of Bitcoin exceeds 7.66%, the final investment return will exceed the social security.

We can predict the future performance of an asset through historical data. For example, if a student performs well in key primary and secondary schools and is admitted to key high schools, then the probability of him being admitted to undergraduate studies is very high.

Similarly, if an asset has performed well historically, it is likely to perform equally well in the future. For example, Moutai, the US stock market, and Bitcoin.

Compared with the average annual return of 7.66% for social security, let's take a look at the increase in Bitcoin over the past decade. In this way, we can evaluate the potential value of Bitcoin as an investment option.