Whenever we have echo visions there is static and distortion. And not like a natural kind where things sound garbled from another room. Like a signal picked up by a receiver is getting interference. Also point out when we have echo visions we don't normally see though anyone's eyes. We have a nice panning cinematic view of events.

Trying to remember what we learned of the echo in Elpis with the retcon and all I can think of is Venat asking if we knew how to use it before providing some simple instructions. I think she took for granted that we even had that power?

Starting to think the echo is something the Ancients created. Like there is some universal surveillance system in place that records information into the aether that can then be reviewed at will if you know how.