- #1
SimplePrimate
- TL;DR Summary
- Since any light signal attenuates over distance, can it become so weak that it becomes undetectable?
In particle terms I'm thinking this could be when the signal's photon density drops low enough to be indistinguishable from the vacuum energy. In wave terms, I'm thinking maybe either the amplitude or frequency might drop below any quantum threshold needed to budge an electron shell in any atom of a detector.
(Arts Graduate here, please be gentle)
(Arts Graduate here, please be gentle)