Well, sarcasm aside, I made a point about having brain cycles to spare.

Don't you ever find yourself in situations in which the task at hand only captures a small fraction of your cognitive resources, and you're otherwise getting bored out of your mind? 2048 is the kind of game that's good at engaging the remaining brain capacity, the part that's not used to focus on a meeting.

Especially as it's easy to quit the game and recover later in case something other relevant comes up ...

Exactly. I wouldn't really want to touch anything more complicated in situations I described. Even reading HN can be too mentally engaging, risking that I actually miss something relevant that's being talked about.