I got a strong motivated reasoning/bullshit vibe from Walker in this interview: https://www.npr.org/2018/07/20/630792401/sleep-scientist-warns-against-walking-t

I got a strong motivated reasoning/bullshit vibe from Walker in this interview: https://www.npr.org/2018/07/20/630792401/sleep-scientist-warns-against-walking-through-life-in-an-underslept-state https://www.npr.org/2018/07/20/630792401/sleep-scientist-war... Particularly this section: > “Sleep is not like the bank. So you can't accumulate debt and then try and pay it off at a later point in time. And the reason is this - we know that if I were to deprive you of sleep for an entire night - take away eight hours - and then in the subsequent nights, I give you all of the sleep that you want - however much you wish to consume - you never get back all that you lost. You will sleep longer, but you will never achieve that full eight-hour repayment as it were. So the brain has no capacity to get back that lost sleep...” I don’t think this follows - seems likely to me that sleep is not some linear time thing and that there’s a standard overhead that doesn’t need to be repeated to extend and make up the time. This feels like a symptom of not understanding the mechanism and making a bad assumption. I also found the “I won’t mention the cognitive failures I can detect” irritating. If there’s some actual thing to mention, say it - this kind of thing sets off alarms for me. It doesn’t surprise me that the rest is similarly bad, I’m glad someone dug into it.