Also worth noting that most people haven't read the various studies on productivity against hours worked, and thus just assume - reasonably enough, but usually

Also worth noting that most people haven't read the various studies on productivity against hours worked, and thus just assume - reasonably enough, but usually incorrectly - that over six months, you'll get twice as much work done on 80 hours a week as 40 hours a week. And working that much feels like you're being very productive.