Question

heya!!

Could the theoretical white hole actually exists??

Answer 1

yes
as every thing has an anti to it
similarly I think the white hole exists as it is anti to the black hole

Answer 2

actually it is just hypothetical . there is no evidence (physical) about it's existence. it's opposite of black hole . in a black hole matter can enter but can't exit and in a white hole matter cannot enter but can exist. it for sake that in the universe everything thing has it's anti