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Information, Ghostly Apparitions And Dinosaurs

TheMadFool June 02, 2020 at 18:48 4050 views 11 comments Philosophy of Science
I was just mulling over Information Theory and how I recall reading that information can't be destroyed.

It got me wondering about how light reflects off of objects and this reflected light, according to optics, lands on our retinas and we, well, see the world around us.

Assuming the specific patterns of lightwaves/photons that constitute visual images are information then, if information can't be destroyed, all the images that light from a source has ever produced must still exist at this very moment.

Is it possible then that visual reports of ghosts - a person seeing an apparition - are simply indestructible visual image information being sensed by people? I mean if the pattern of photons my late grandfather consisted of, thoroughly mixed by now with other photon patterns of other people and various objects, were to fall on my retina, I would actually see my late grandfather again! :chin: In medieval terms I would see my late grandfather's ghost.

Other information patterns of matter-energy may also persist and, in my humble opinion, may account for so-called paranormal phenomena.

Tapping into this kind of information source we could, in theory, see the entire history of the earth - dinosaurs and all. The Loch Ness monster maybe an instance of people seeing such reconstituted prehistoric information?

Comments (11)

Pfhorrest June 02, 2020 at 19:03 ¶ #419668
While information can’t be created or destroyed, like energy it can be rendered inaccessible, through the exact same process: the second law of thermodynamics’ inevitable increase of entropy.

Energy and informational are quite closely related (and are in effect the modern equivalents of substance and form). Heat energy is essentially the same as informational noise: it is just disorder. “Noisy” arrangements of energy are all that heat is.

The second law, in its deeper statistical form, basically says that the information of the universe gets noisier, more disordered, over time; it losing usable energy to heat is just a byproduct of that, since heat is noisy energy. And just as it is hard to extract useful information from a noisy source, so too is it consequently difficult to extract usable energy from heat.

The upshot here being that although the information is not destroyed, it is still lost, inaccessible, through the passage of time, just like usable energy gets lost to useless heat over time.
A Seagull June 02, 2020 at 19:23 ¶ #419672
Quoting TheMadFool
I recall reading that information can't be destroyed.


As I recall, information can be destroyed in a black hole.
Gregory June 02, 2020 at 19:26 ¶ #419675
If only the present exists them information can be rearranged and have destroyed that way. What is the world's substratum? Big debate
Pfhorrest June 02, 2020 at 20:58 ¶ #419696
Reply to A Seagull Nope, Hawking fixed that with his eponymous radiation.
A Seagull June 02, 2020 at 23:21 ¶ #419731
Quoting Pfhorrest
?A Seagull Nope, Hawking fixed that with his eponymous radiation.


The hawking radiation conjecture doesn't prove it.
Pfhorrest June 03, 2020 at 01:34 ¶ #419767
Reply to A Seagull Not by itself but the solution involves it.
TheMadFool June 03, 2020 at 03:23 ¶ #419791
Reply to Pfhorrest Reply to A Seagull Reply to Gregory

Yes, there's entropy and the photon pattern of historic objects may subsequently be affected by it and that, for me, explains why most ghosts seen by people are hazy/blurry/shadowy images, an indication that some information was "lost" (to entropy or something else).
Pfhorrest June 03, 2020 at 03:58 ¶ #419801
Reply to TheMadFool The thing is, the information of the image isn't any kind of special thing above and beyond the arrangement of the photons, so you would need some ordinary optical explanation for how that pattern of photons got shuffled around somewhere for some period of time only to reappear intact later. Entropy would explain why they would tend to come out of that process imperfectly, but that's like saying the image reflected by a mirror or seen through a camera and then projected somewhere is imperfect... you still need the mirror, or the camera/projector, or something, to explain how it stayed even as intact as it did, and didn't get mangled beyond comprehension as the photons just scattered off of an ordinary surface.
TheMadFool June 03, 2020 at 04:12 ¶ #419810
Reply to PfhorrestIs the probability of photon patterns of objects reforming to produce either an exact image or a blurry version of the image zero?
Pfhorrest June 03, 2020 at 04:13 ¶ #419811
Reply to TheMadFool Negligibly close to zero, yes.

Odds comparable to a dropped and broken egg un-dropping itself into an intact egg again.
TheMadFool June 03, 2020 at 04:18 ¶ #419813
Reply to Pfhorrest But not zero.