wiosnaintel

That's because you compare a median doctor/engineer with the best OF individuals. Wouldn't you want to compare them with Sergey Brin/Thomas Frist in this case.

The excuse is you are good at tech and there's a gun to your head.

> (...) if the function was a straight line

There are a bit more to go from local linearization to a complete view of a derivative but it's not exactly incorrect.