Bitcoin is 89% premine to any kid born today.
In 2140 it is 100% premine to any kid born that year.
A pre-mine refers to initial creators allocating themselves tokens before public launch -- before a protocol can be publicly mined. That clearly does not apply to Bitcoin.
Anyone who wants to mine for bitcoins can do so. In fact, they can continue to do so after the year 2140. They'll just collect transaction fees only instead of newly minted coins.
Why the future generations don`t get any rewards?
They will get the reward of sound money.
