If the Universe was born at the Big Bang, what existed before then?

Pretty sure one of my science teachers said that there was some kind of gas called a ultrahot that existed before the big bang

it's a extremely hot gas

:)

t's possible that before the Big Bang, the universe was an infinite stretch of an ultrahot, dense material, persisting in a steady state until, for some reason, the Big Bang occured. This extra-dense universe may have been governed by quantum mechanics, the physics of the extremely small scale, Carroll said.

Explanation:

the answer should be monarchy

"a shortage of traditional labor created new opportunities in the workplace. a major cause of the internment of japanese americans during world war ii was. racial prejudice. in the early 1940's, the "destroyers-for-military-bases deal" with great britain and the lend-lease act were evidence that the united states."