There is about 4.7Billion internet users in the world. Only 2.5% of them use crypto.

It is estimated that only about 110million people worldwide use crypto, which is a small percentage (~2.5%) of the total internet users worldwide. Crypto users also account for just about 1% of the world's population. Keep in mind that the internet adds 100's of millions new users each year (more people getting access to internet).

1% of the world's population brought the crypto market to $1.5+ Trillion. Imagine what 4 billion users could bring. For the sake of simplicity, if we assume the market cap keeps increasing linearly with the number of users, we're looking at a ~$55 Trillion market cap with 4 billion users, and ~$65 Trillion with 5 billion users. If we consider USD inflation, and the fact that most crypto users will keep a larger fraction of their wealth in crypto (as a replacement for banks), the figure could be much higher.

You are early, earlier than a rooster crowing in the morning.