It's indeed surprising that replacing the elementary particle with a string leads to such a big change in things. I'm tempted to say that it has to do with the fuzziness it introduces.
-- Edward Witten
   
Edward Witten   Name:
Edward Witten
Type:
Mathematician
Nationality:
American
Birth:
August 26, 1951
https://www.nutquote.com/quote/Edward_Witten