I don’t think this schedule would work for everyone but the general idea was: intense work for a short periods of time, take some time to talk with colleagues and go through meetings and then work again, with long breaks in between. That way I could manage 8 hours of productivity without burning out. And yes, sometimes I would get in flow and work for 12 hours straight without eating. But those days were more the exception than the rule. The point is I could have roughly 8 hours most days working this way.
In companies I’ve worked with I’ve always felt babysitted, as though I was unable to discipline myself when not watched all the time by managers. The truth is we don’t all work in the same way, and we are all reasonably interested in our job—-and if we’re not, sitting all day in the office is not going to change that. So why don’t we make room for everyone’s pattern while keeping some team time every day?