> as well as the study of violinists That's an off-shoot of Ericsson's "deliberate practice" work. More specifically, I think it was four hours of "deliberate

> as well as the study of violinists That's an off-shoot of Ericsson's "deliberate practice" work. More specifically, I think it was four hours of "deliberate practice" per day was the max. But work is more than "deliberate practice". As to the physics work, note that it cites Van Zelst and Kerr in the 1950s. Why no more recent research? Has it been reproduced? > and in von Neummann's case sleeping/dreaming And shaving. https://www.representations.org/thoughts-while-shaving/ https://www.representations.org/thoughts-while-shaving/ > my former boss as an example Remember that Darwin had no boss. > my former boss would sleep less than 5 hours a day, and he was proud of this fact. Oh, that reminds me of another example - Edison. Quoting https://www.theatlantic.com/health/archive/2014/05/thomas-edison-and-the-cult-of-sleep-deprivation/370824/ https://www.theatlantic.com/health/archive/2014/05/thomas-ed... "He reportedly slept a mere three to four hours at night, “regarding sleep as a waste of time, ‘a heritage from our cave days,'” as James Maas tells us in his 1997 productivity bestseller Power Sleep (public library)"' (See more from that Atlantic piece for Edison's views on sleep.) > Looking at the study of research scientists mentioned in the article, it would seem that they are the majority .... how many research scientists do you think there are? How many do you think were mentioned in the article?