Well, it might start as a joke, but when the coin cap is reached, inflation will suddenly grind to a halt, and everyone will have a stash roughly proportional to how long they
printed and how much they invested...
I think this is actually a very fair minting rate. Now, I haven't checked whether the coin limit can humanly be reached

There is no coin cap. Except the number of coins that would make the bitcoin codebase explode, but then we'd just have to patch the thing.