It’s really big in the barefoot shoes community. To the point of being cultish personally.
Spoiler
But then again I viewed fediverse evangelist as cultish too 😬
Vivobarefoot has a page about the science of it. Only the first 1/3 of the page has references to a few papers. The other 2/3 is ATM I consider marketing as there’s no research paper referenced.
Bummer! If I have the time I’ll link the papers