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AirierWitch1066 t1_j66buzv wrote

Reply to comment by VulpesIncendium in Sending a signal faster than light is time travel? by KingOfTNT10

This supposes that the signal must be “sent.”

Orson Scott Card in Ender’s Game came up with an Ansible which worked via two entangled particles - you could spin one and the other would spin the same no matter how far away it was.

This probably isn’t actually possible, but I think in our hypotheticals it’s fair to consider a form of communication in which the information doesn’t travel faster than light, because it doesn’t travel at all, it simply exists at both ends.

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VulpesIncendium t1_j66s76g wrote

I actually thought about mentioning this, since it's the same exact sci-fi technology they use in the Mass Effect game series to explain instantaneous communication across the galaxy. It's an interesting idea, but I just dismissed it as impossible sci-fi magic. But, who knows? Maybe one day it could be the basis for some real world technology.

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