[fatbird]

True, the Metaverse was a practical product failure, rather than an impossible-in-principle failure. Regardless, a lot of smart people worked a long time trying to make it work, and it was pretty obvious it wouldn't once Zuck demo'ed it and everyone saw a creepy cartoon world, which was all the bandwidth and compute at the time could support.

Grandparent is trying to argue that a lot of smart people working quietly on something confers plausibility upon the premise of their work (i.e., "they must know something you don't"). I've rebutted with two examples showing that large numbers of smart people working on something don't make plausible a premise that is obviously flawed for other reasons [*].

[*] (ETA) and is known at the time by the smart people.