As a side note, no single person can simply invent anything complex enough alone. For example, the early version of Linux and Git were probably written by Linus, but it took many more people to make it good enough for large audience.

A single person might be able to come up good theory in theoritical science. But for engineering projects, it has always been a group effort.

In fact, we should not even have the illusion that a single person can do this much. We don't need to idolize any person. Overly idolizing a person is dangerous to the society.