This is a hilariously uninformed take - it's clear you don't understand how this works so I will just be direct and not make fun of you. The hedge fund manager

This is a hilariously uninformed take - it's clear you don't understand how this works so I will just be direct and not make fun of you. The hedge fund manager has access to billions in managed capital. If he can advertise positions to the public, and the public takes his advice; he can manipulate his billions of dollars vs the known positions he gives out to hedge his own positions. This is a 5 years olds description of how this works.