I'll bet EM travels more than the typical CEO, who already travels a lot. Especially if the company is international.

https://hbr.org/2018/07/how-ceos-manage-time

"About half (47%) of a CEO’s work was done at company headquarters. The rest was conducted while visiting other company locations, meeting external constituencies, commuting, traveling, and at home."

Shockingly I didn't see anything about time spent on Hacker News. There's probably a lesson there, or something. :)