0013: Gernsback’s Legacy: The Science Fiction Ghetto

What was Hugo Gernsback’s legacy? Did his brand of science fiction save the genre, or was Brian W. Aldiss right that he ruined it?

Links:

texts
Trillion Year Spree: The History of Science Fiction by Brian W. Aldiss
https://archive.org/details/trillionyearspre0000aldi

Encyclopedia of Science Ficiton by John Clute and Peter Nicholls:
https://archive.org/details/encyclopediaofsc0000unse_t7i3/mode/2up