(I do get paid directly based on my work, so my original description for the 'majority of jobs' does not describe my own, so here I'm only speculating) I don't

(I do get paid directly based on my work, so my original description for the 'majority of jobs' does not describe my own, so here I'm only speculating) I don't think anyone is reducing their work hours specifically to read HN for an hour every day. Like the study describes, most people don't and aren't capable of working for 8 hours an entire day; if they choose to spend the unproductive hours reading HN instead of working on some ancillary project, I don't see any reason they'd have to go out of their way to justify it to themselves.