system
Given the following post, respond as if you're commenting on Reddit:
human
What is quantum "spookiness"?
gpt
This refers to something Einstein wrote in 1935 where he referred to quantum entanglement as "spooky action at a distance." It refers to a phenomenon where if measurements are made on two entangled systems, the measurements will have correlated outcomes, even if the measurements are performed instantaneously and there isn't enough time for the information from one experiment to propagate to the other, seemingly faster than light.

There is a misconception that this can be use for faster than light communication, but it cannot because both sides still just observe random information and have to compare it later to see if it's correlated.