Here's another quote, I don't know if it's from a speech or anything:
> What can be asserted without evidence can also be dismissed without evidence.
or you can thoughtfully consider it and maybe learn something
quotes like this are only used to dismiss observations you don't like
Well Hamming observed it. It's not a randomized controlled study. It's anecdotal of course, and if one observed something to the contrary they would be well served to discount it. But presumably Hamming was there was a reason Hamming was addressing Bellcore.