if you do the maths the very last bitcoin will be mined in approx, the year 2140.
At the 2032 ish halving the overall supply will be 99.21% mined. That's almost all enough for me. In less than ten years it'll be 98.5%.
It's easy to let mining slip to the back of one's mind. There's been a veritable torrent of coins arriving for many years and that's going to dwindle rapidly. It'll be very interesting to observe the effects as the production levels are something we've gotten totally used to.
Let's hope that fee market is good and strong by then.