I mostly agree, almost everything is possible for almost everyone, but some people have hurdles to overcome that would probably take their entire life to overcome.

Having said that, some people choose that path anyway, and sometimes they actually end up mastering the field from the bottom up in a completely new way that no one else would ever think to do.

I say this on the off-chance someone reading this is one of those people. But yeah, I'm not gonna try grow from 5'7 to 6'4 or sprint faster than Usain Bolt. But more power to anyone who tries!