That's because you're not scaling out.
In 4 years #Bitcoin will be worth how much? Anyone know?
Much more than it is today. 1.6 coins might mean MORE than 3.12 coins today.
Discussion
what I mean is that with respect to how the new coins mind adds to the supply is half as much every time we go through this 4 year cycle
so anticipating that things are going to change a lot just because the reward goes down makes less sense every time because the reward is already pretty small as a percentage of the total supply