[dev-slash-zero]

You need to produce work that others can evaluate to earn you the title of "polymath" -- otherwise you are not.

It's too easy to self-proclaim titles, and to others, naturally, entertaining statements like these are a waste of time.

All that anyone can gain from your comment are the claims that you consume a lot of information, and that you can recall said information. And that you're good at math despite others not knowing it. But, that says nothing about the ability to use said information usefully. Maybe another person consumes 10% of the total information that you do, but, they select this information more carefully, and can produce insights more effectively than you. This is at least in part the difference between fluid and crystalized intelligence.

Maybe a person that consumes 10% of the information that you do is in fact a polymath, but you are not.

Not that I really care to prove that you specifically are or are not a polymath, because, the designation is meaningless, anyway. This designation never meant anything to those that society has retroactively identified as polymaths, either.