It’s kind of weird in that reading more widely is supposed to be broadening (you are more well-read) but in this case it’s supposed to contaminate you somehow. I suppose if you wanted a clean-room implementation of something, you’d want people who don’t know about what’s already been done, but normally one would prefer people who are more knowledgeable about the world.

It seems almost anti-intellectual: never trust someone who’s read the wrong books or been to the wrong parties.