Remi,
Let's have a game of listing people: Edison (single child) Tesla (driven, focused, bachelor) Einstein (probably mild autism) The Wright Brothers (technical knowhow) Dirac (very intense) But then Feynman, Heisenberg very gregarious. Freeman Dyson said of Feynman that he was "half-genius, half-buffoon"... ....but later revised it to "all-genius, all-buffoon". Such a thin balance on the edge of sanity -- for the top of the list - wow - not sure you would want to clone any of them for fear the slightest changed circumstance could turn them into a Frankenscientist ;-) Of all of these geniuses, none had both the highest level of math and theoretical skills, combined with the highest level of manual skills (to build working devices of the highest caliber). For that unusual combination - I would say Luis Alvarez may have been a true singularity in physics - although a few others come close. Tesla was weak in math; and Feynman was clumsy enough that he was lucky not to have been charged with an unintentional homicide.
