Superstring theory from physics requires there be at least 10 dimensions to the Universe. It's hard enough for most of us to comprehend 5 or 6 dimensions, let alone 10. This YouTube video tries to confer a sense of how 10 dimensions can exist:
I'm a number-luvin' primate; hope you are too! ... "Shecky Riemann" is the fanciful pseudonym of a former psychology major and lab-tech (clinical genetics), now cheerleading for mathematics! A product of the 60's he remains proud of his first Presidential vote for George McGovern ;-) ...Cats, cockatoos, & shetland sheepdogs revere him (and he, them). ...now addicted to pickleball.