In a world full of uncertainty, there will only be 21M Bitcoin

There are currently ~19,418,368 bitcoins in existence, that’s 92.6% issued.

This number increases by 6.25 BTC every 10 minutes, when new blocks are mined. Every four years, the issuance rate halves.

It's estimated that the final bitcoin will be mined by the year 2140.

If a Bitcoin is lost or destroyed, it cannot be recovered, which can lead to a decrease in the total supply, and an increase in their overall value due to scarcity.

Bitcoin is like our time; scarce and valuable.