Einstein established spacetime with a measly 4 dimensions, and string theorists are just sitting there like, "Pathetic." While Einstein revolutionized physics with general relativity's 3 spatial dimensions plus time, string theorists casually toss in 7 extra dimensions before breakfast. They're basically dimensional hoarders who can't stop at a reasonable number. Next faculty meeting, they'll probably announce they found dimension #12 hiding behind the coffee machine.