I think one of the camps on difference between "internal" and "external" might be a camp I can understand.

External= Improving physicality, more physical power

Internal= Improving efficiency, better use of existing physical power

Is this a general idea that people hold as the difference between "internal" and "external" martial arts?

If so, then do people believe that modern athletics does not seek to train more efficient movements? Is it a generally held belief that athletes are people who only seek to become physically stronger, faster, conditioned, agile etc. but do not practice technique? Is it a belief that athletes spend most of their time lifting weights and doing drills only to improve physicality, but there is no "rewiring" done, and they do not seek to improve their movements?