> On Sanjay’s monitor, a thick column of 1s and 0s appeared, each row representing an indexed word. Sanjay pointed: a digit that should have been a 0 was a 1.

I was curious how he can see "a digit that should have been a 0 was a 1" in a "thick column of 1s and 0s"? Can you give a specific example. I'm not questioning that he did but I'd like to know a specific example.