I am trying to point out that the methods we use to "determine who is a genius and who is not" are deeply flawed and rudimentary, letting people fall through the cracks and preventing people with different learning styles for succeeding.
Like I said in another comment, I am terrible at testing and failed my way through school but I am still able to have a successful career as a software engineer applying maths to engineering problems that other people are excited about and want to work on. The reasons for this are complex because I am complex, like all people, but not like numerical test scores.
> But that method will need to be able to predict future events that shape the person
I think individuals are capable of qualitatively assessing a person's ability and trajectory given enough information, time, and context. Humans may come to the wrong conclusions a lot of the time but so do academic tests...