..."but I'm less convinced by that then my core claim that one unit"...
That should read "than". I am suspicious of any writing that uses bad grammar.
@pw good thing you can read the linked studies and form your own beliefs!
I've generally considered Matt Walker to be untrustworthy after reading Guzey's book review https://guzey.com/books/why-we-sleep/
..."but I'm less convinced by that then my core claim that one unit"...
That should read "than". I am suspicious of any writing that uses bad grammar.