Clearly a titan of engineering and innovation.<p><a href="https://en.wikipedia.org/wiki/Isambard_Kingdom_Brunel" rel="nofollow">https://en.wikipedia.org/wiki/Isambard_Kingdom_Brunel</a>
Probably John von Neumann: <a href="https://en.m.wikipedia.org/wiki/John_von_Neumann" rel="nofollow">https://en.m.wikipedia.org/wiki/John_von_Neumann</a>
Von Neumann. He was so higher in intelligence than everyone else that ever meet him that it was scary to them. He was not more intelligent, he was leagues ahead. I think the only person right now on this planet to get close to that kind of intelligence so high it feels alien when you meet it is Edward Witten.
Alan Turing <a href="https://en.wikipedia.org/wiki/Alan_Turing" rel="nofollow">https://en.wikipedia.org/wiki/Alan_Turing</a>