Imagine a manned spacecraft is five years from Pluto and it is iffy whether it has enough fuel to complete the mission (really, stick with me). 

If the ship doesn’t reach the destination, it is possible that the person who will invent the technology that will make completing such a journey feasible is not even born yet.

This is how I feel about Justin Verlander and 300 wins. He is nearing an achievement that more and more feels as distant as Pluto. And if he does not have the gas to get there, it is possible the next person who will has yet to be born.

And that is assuming a next person ever will get there.