For some people, reading Twitter often provides much more information per unit time and is more productive than reading arXiv.

“I think we were having this conversation about people often say that they should like they're spending too much time reading Twitter and they wish they spent.”

“They spend more time reading archive,”

“but actually, like the amount of information per unit time you get reading Twitter is often just much higher and it's just much more productive for them to read Twitter.”