"Mxsmanic" wrote in message
...

I didn't qualify the term, so I mean most people in the world. Someone
who
always flies in moderate weather might easily forget the special
precautions
that must be taken in extremely hot weather, which invalidates the
assertion
that people (pilots) who don't know the answer to my question should not
be
flying.

This knowledge is required for a private pilot in the USA. I suspect it's
similar for other countries as well. Someone who doesn't know this either is
not a pilot, or somehow has beaten the system. In either case he/she should
not be flying.