One should also know everything, but clearly that’s impossible.
There are some areas of knowledge that are so unlikely to yield anything useful that it’s not worth spending any time being curious about them. For humanity in general, psi phenomena now fall into this category. There was a time when they didn’t, but it’s safe to say that time is over. For me as an individual, string theory falls into that category. I’m glad there are some people investigating it, but the effort required for me to have anything but a superficial understanding of the topic is extremely unlikely to help me achieve anything.
One should also know everything, but clearly that’s impossible.
There are some areas of knowledge that are so unlikely to yield anything useful that it’s not worth spending any time being curious about them. For humanity in general, psi phenomena now fall into this category. There was a time when they didn’t, but it’s safe to say that time is over. For me as an individual, string theory falls into that category. I’m glad there are some people investigating it, but the effort required for me to have anything but a superficial understanding of the topic is extremely unlikely to help me achieve anything.