You missed the point. He understands all these things you tried to explain. The point is that your definition of the word "concurrency" is objectively wrong.
You:
you seem to be doing multiple things at the same time. In reality they are run little by little one after another
The actual meaning of the word "concurrency":
The property or an instance of being concurrent; something that happens at the same time as something else.
Wiktionary actually even disagrees with your pedantic definition even in computing!
(computer science, by extension) A property of systems where several processes execute at the same time.
I suspect that concurrency and parallelism were actually used interchangeably until multicore became common, and then someone noticed the distinction (which is usually irrelevant) and said "aha! I'm going to decide that the words have this precise meaning" and nerds love pedantic "ackshewally"s so it became popular.
>=
and<
= match the mathematical operators. The question you want to ask is why doesn't it use=
for equality, and the answer is that=
is already used for assignment (inherited from C among other languages).In theory a language could use
=
for assignment and equality but it might be a bit confusing and error prone. Maybe not though. Someone try it and report back.