It seems this thing has crossed your mind rather late. You have been on the forum for more than eleven years and yet you're still asking this question. I suppose this curiosity about what will happen after the last Satoshi is mined normally hits newbies, but you aren't one.
You must have already been sufficiently exposed to Bitcoin after getting to know it more than a decade ago, but I wonder why you're still asking it. Has this account changed hands?
Being the 94,933rd member of a forum that has already more than 3.6 million members, you must already be a Bitcoin OG more or less.