Where "invented" really means "had the right set of skills, knowledge and experience, and was paying attention at the exact right moment when all the pieces of the puzzle were collected together on the table".

Scientific and technological progress is inherently incremental. It takes a lot of hard work, dedication and specialization to spot the pieces ready to be connected - but the final act of putting them together is relatively simple, and most importantly, it requires all the puzzles to be there.

Which is why, historically, ~all scientific discoveries have been made by multiple researchers (or teams) independently, at roughly the same time - until all prerequisites are made, the next step is ~impossible, but the moment all are met, it becomes almost obvious to those in the know.

> Which is why, historically, ~all scientific discoveries have been made by multiple researchers (or teams) independently, at roughly the same time

This is quite a big claim. All of them? I know there are many discoveries that fit the pattern you're pointing out, but I wouldn't go as far as to say all, or even the majority of them do.