Answer to the thread:becuase when he was mentally stable,whe he had a stable life in and out of the ring,he was just that,unstoppable. Never has a HW been combined with such a combination of power,speed,skills and just sheer ferocity. His defence was deceptively good and he was just a monster, To survive 12 rounds with a prime Tyson was viewed as a success for his opponent and a failure for Mike. Hell, fighters would go into the ring with the mentality that surviving was
"winning" in an essence! Few HW have had that impact before.

The only legendary HWs that would give him problems would be the boxers,the Ali's etc and may be the feeaks of nature like Foreman although Mike would have the upper hand on the inside,Foreman had possibly the longest loopiest punches I have ver seen! Mike would decimate the rest.

Go and watch some Tyson fights of him in his prime then watch the older HW and spot the differences. And Mikes uppercuts were possibly the most brutal punches in the histyory of boxing. His hooks were astonishing,short,compact yet ridiculously powerful,he had a jab,he had it all dammit. Een head movement!

Tyons beat all the HW around at this time. Who he did he not beat whom he could have beaten? Lewis etc clearly didn't want to fight him! Who can blame them? Lennox waited for Tyson to get old then fight him

And to say Tyson couldn't handle authority are correct..but only after Cus passed. Under Cus,he was learning and achieving.