I remember Jack Ma coming out as in-favour of this sort of work ethic. I find it nauseating that people believe this stuff, I don't usually want to yuk someone's yum, but enforcing this on people is just unhuman. I would consider myself a productive individual, but realistically I only have 4 or so hours of optimal work in me a day. Everything else is diminishing returns and, long-term, probably makes me less productive.