If you watch for more than 4 minutes, this 9 minute video explains how Bell proved that the particles can't have been given opposite "ball colors" at the time t

If you watch for more than 4 minutes, this 9 minute video explains how Bell proved that the particles can't have been given opposite "ball colors" at the time they became entangled. https://www.youtube.com/watch?v=ZuvK-od647c https://www.youtube.com/watch?v=ZuvK-od647c It's quite clever how he proved it, and that it's actually possible to rule out "information that we're just not aware of".