There was a failure to recognize the deep problems in AI; for instance, those captured in Blocks World. The people building physical robots learned nothing.
-- Marvin Minsky
   
Marvin Minsky   Name:
Marvin Minsky
Type:
Scientist
Nationality:
American
Birth:
August 9, 1927
https://www.nutquote.com/quote/Marvin_Minsky