Here’s a tidbit of research from Chicago’s Straight Dope columnist Cecil Adams on Did medieval scholars argue over how many angels could dance on the head of a pin?. This point is extremely important, so I will quote it:
In a Quora discussion today entitled Do theories with extra dimensions display too much freedom?, they say the optimal number to work with is 10 dimensions.
Now I can’t sleep at night. If strings do exist in 10 dimensions, can angels see in more than 3? And if so, how many? Can someone here help me get a good night’s sleep?