I conceptually acknowledge the wisdom of this idea but in today's emergent and intensifying clown world, there is so much noise to signal.  So pragmatically it is very rational to subscribe to echo chambers who specialize in questioning the popular narratives and have a track record of being correct.  So merit selected. When I venture out of that realm I learn that idiocy, mediocrity and NPCs are the norm and critical thinkers are very rare.

TLDR: my echo chamber tends to be correct most of the time. Garbage in, garbage out. Why waste time listening to morons? 😁