Just got reccomended Fermat's Enigma: The Epic Quest to Solve the World's Greatest Mathematical Problem, and my god this book is crazy, it's all about this blokey type who was all: "Lol, Pythag's a n00b troll" And generally proved that X^2 +Y^2 =Z^2 is the only therom that works, X^3 + Y^3 DOESN'T equal Z^3, X^4 +Y^4 DOESN'T equal Z^4, and so on. It ONLY works with Square numbers.
And this guy wrote a ridiculous amount attempting to prove his therom but couldn't write enough so was all: "I could prove this but I haven't got the paper"
And then he died.
And this was all in the 18th century and shizz.
Then some English mathematician proved it. He wrote > 100 pages of proof. My statistics teacher read the first page. He didn't understand it. That's how hard core this shit is.
My stats teacher worked out that if you have 23 random people then there is a 50/50 chance that 2 of them will share a birthday, thats some hardcore shit right there.