I am not sure how much weight you can put on it; but Wilt and Russell have an interview on YT where they say players of their own era were actually physically tougher.The whole "athletic black men playing against slow white guys" thing is overplayed IMO. Artis Gilmore was a great specimen as well and played in a similar era, but never played at the same level as those two. I have no doubt guys like Wilt and Russell would dominate if they played today (just not to the same level). They were simply extremely intelligent when it came to rebounding and defense (except Wilt could never figure out how to win!). Honestly believe Russell would make Dwight his bitch with his mind games.