Was Earnie shavers really the hardest hitter of all time?

[TysonBomb]

Nobody knows

Unless you can bring a prime Shavers and Tyson back along with Foreman, Liston, Marciano and the rest of the big hitters and have them measure their punching power on one of those machines.

I know that Frank Bruno actually tested his power and had it recorded. Even stumbled on an article on it once.

The most we can do is make educated guesses based on the available evidence.