That would completely cripple discovery. It's enough to aggregate them.
Discussion
Low signal: re-posts, reactions
Possibility of higher signal: zaps, quotes, comments - things that cost some energy
Zaps are mostly replicating the same social media and parasocial dynamics of legacy social media (lol)
Those turn out to be inherent to humans and not merely an effect of algos.
The people you know, know more people than you do.