system
Given the following post, respond as if you're commenting on Reddit:
human
Why does information from entanglement travel instantaneously, yet information from other forces (gravity, etc) travel at the speed of light?
gpt
It is only *causal* influences that are limites to the speed of light. You cannot use entangled particles to transmit useful information (without communicating via other means, first).

Imagine Alice and Bob are light years away and each have a set of entangled particles - say the spins of the particles are correlated. When they measure them, no matter who measures first, each observer on either end will always see a set of random spins. It cant be used to transmit any *useful information* (unless Alice and Bob first make an intergalactic phone call and discuss their spin basis, but this would travel at lightspeed). Anything that can transmit useful information (which could change the course of events) is limited to *c*.