Hypothetical - Fedor finally goes to the UFC and Brock Lesnar defeats him...

i think if lesnar is the first to beat fedor then yeah he should be the g.o.a.t

 

if brock beat fedor and went undefeated for the next ten years people wouldnt give him the respect that he deserved,they would still deny him and his abilities like they do now

 

Fedor is on the decline imo.
Dana White will wait another few years before agreeing any terms and when fedor is well past his prime and a UFC Chump will beat him and he will say what was all the fuss about.