Love the tech! It's amazing that we've developed tools to help us see the unseen.
Here's a story I've told before, wait let me see if I can wiki it as it's a fairly documented story. Nope, found it once but not this search. Oh wait, found this
https://en.wikipedia.org/wiki/Pellegrino_Ernetti
The story: Two monks in Vatican City were setting up speakers and amplifiers, when a voice comes out of the speakers very clearly. One monk recognizes the conversation as one he had when a little boy with his now deceased father.
The monks recognize they have somehow caught a replay of a moment back in time and begin to try and reproduce it and to be able to 'dial in to specific moments in time'. While they do make some headway in the project they eventually give up and hire the CIA to continue the research and to develop the technology to 'dial into specific time periods'. Out of that comes cronovision in I believe the 1960's. The CIA went on to develop this MUCH further, but that's another conversation and an entire week or two of your life to trace. lol
However all this does raise very interesting questions about what's out there and how many different types of things exist in the realms our five senses can perceive. We've barely begun to acknowledge it all exists and are a very long ways away from separating what is 'energetic impressions left due to traumatic events, what is out of body people caught in a near dimension, what is travelers between dimensions like ascended beings, what is extra terrestrials and so on - there's an entire unseen landscape we've not even begun to map yet.