As far as extra dimensions are concerned, very tiny extra dimensions wouldn't be perceived in everyday life, just as atoms aren't: we see many atoms together but we don't see atoms individually.
-- Edward Witten
   
Edward Witten   Name:
Edward Witten
Type:
Mathematician
Nationality:
American
Birth:
August 26, 1951
https://www.nutquote.com/quote/Edward_Witten