Barringa miracle, he won't. Tiger put too many miles on his body in his 20's and 30's. He's been a shell of his prime self for a decade. TBH, I'd be surprised if he got two more. As far as GOAT, depends on your criteria. Jack obviously had better longevity, more majors, and was a better ambassador for the sport. Tiger had the higher peak, and tougher competition. Take your pick. I'd give Jack the slight edge. But they're essentially 1a and 1b.