Of course it is possible. If nothing else, a 1300 can beat 1400s and become a 1400, then beat 1400s and become a 1500, and eventually become a 2700 or 2800 himself/herself. Work ethic is all that matters.
That is not how it works. To reach 2700 you have to have some natural talent. There is a reason only 46 now have above that rating
Sad to say...utter nonsense.
You might also want to say that someone who knows how to ride a bicycle has a 50/50 chance against an astronaut on piloting a space craft to the moon.
Or that someone who has mastered their times tables can solve differential equations or multi-variable calculus.