Earlier quoted context omitted.
Oh wow... shit... it's the same guy for all of these indeed. I think I would've been super proud of myself just for accomplishing even one of these things... I guess these are the type of guys that would start to approach the definition of a modern polymath maybe? Not saying he is one necessarily (or that he isn't), but what would examples of modern polymaths are there? considering a lot of the fields to be mastered…
Yes, he has quite a resume there. However, maybe I'm just older, but my ideal polymath is not just coding/hacking electronics. I personally think it should be those plus knowing more diverse fields and skills such as: applied mathematics, celestial navigation, biohacking, chemistry, milling/lathe work, building machinery from scratch by smelting and casting [1], animatronics, boatbuilding, horology, mechatronics, mus…
I think a modern polymath could look a bit different than the ones in the classical sense. To be able to make contributions to the fields you mentioned, I guess you would need more years of study than anyone could dedicate to, just because those fields seem to be very hard, especially considering the degree at which nowadays we would consider someone proficient in any of these.
Well, I'm not sure, I'm actually wondering. For your particular definition, or something close to it, who would you say it gets close?