Great, you totally missed the point.

While the wheel has been used from the next day of its invention till today, the Fermat's little theorem had no application outside of pure math for roughly 400 years.

To be fair there was no obvious point, so how could it be missed? You simply wrote it's interesting without explaining what you find interesting about it.

Yes, I'd assumed people would have some basic knowledge before commenting to disprove the point and have functional synapse with basic correlation skills.

Is an obvious conclusion to me, otherwise why would I point it out in the first place?

Knowing when Fermat's little theorem gets used outside math is not basic knowledge!

It's if you studied computer science, is in the first year's program in many universities.

This board is predominantly for IT and engineers and this post is about cryptography.

If someone doesn't have an idea of what they're talking about, they should at the very least avoid commenting without having the knowledge of what's discussed.

Is not that every opinion matters, it doesn't. Especially if you don't have any knowledge of the topic.

Internet has given the illusion that anybody is one search away from being an expert on anything.

Those classes might mention this use. They're unlikely to teach students that it wasn't used elsewhere (outside math) until then, which is a crucial part of the point you were making.

Seriously, that specific aspect is trivia, not basic knowledge, even in the realm of cryptography.

Though there could've been different ways to ask rather than saying, arrogantly, "wheel is used everyday too"

I’ve taken many a crypto class and never picked up that nugget.

You made a social misstep.

Accept the correction with grace, try to be better, and move on.

You took the wrong one

No, you just have a pet fact that doesn’t really matter to anyone but you