14 hour days for knowledge work is insane... I'm generally only able to be productive 5-8 hours on a given day. Most of my time is in meetings though. There's

14 hour days for knowledge work is insane... I'm generally only able to be productive 5-8 hours on a given day. Most of my time is in meetings though. There's definitely a drop off in terms of anything resembling productivity and even the suggestion is rather stupid. In my later 20's I worked about 3 months of 60+ hour weeks and hit a point where I couldn't even concentrate/think... it wasn't a matter of didn't want to or not.. it was literally not able to function, and probably shouldn't have even driven to/from work at that point.