Of course it is "just" a matter of time discipline. Unsurprisingly it is harder to pull off when there are fewer significant external cues, such as physical separation of workplace and private space.

At the office, I'm reminded about ttgtfo by the building turning dark and silent. At home, as Europe signs off, the Americas come online and the buzz keeps going until Asia takes over ... For people without kids or family and an existing tendency to work too many hours anyway, this is not helping. Also, communication feels a lot more time consuming now. More dedicated meetings to align, less time for craft: Either get less done or put in more hours.

I'm glad we've already seen a controlled re-opening of the offices here. I don't mind remote being an option, but I appreciate not being forced to work fully remote.