Oho, but he didn’t stop there, the old goat, he didn’t just stop at one alphabet, did he? Because we use the Latin and Greek alphabets, and even the odd spicy Hebrew character and god knows what else in the darker corners of mathematics.

You have never seen equations before the use of letters as variables. They had sentences, full fetched sentences

“Use Greek letters, too! I mean… why not? Do it, man… do it… DO IT…!”

Alphabet doesn’t make math harder, it’s used for harder problems where alphabet makes them actually easier.