"It is basically like having an incredibly smart engineer/scientists/philosopher/etc that can explain things quite well, but for pretty much every field."

I don't know how to tell you this without being a little rude, but if you think ChatGPT is incredibly smart or that it can tell you meaningful things about "any field," well, there is a difference in intelligence somewhere in the equation between you and ChatGPT, but its not the one you think.