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Captn_Porky t1_j33h2vo wrote

Reply to comment by Falzon03 in Holographic tech coming soon to businesses by Falzon03

>A true Star Wars style hologram is just not obtainable as it defies physics in the way of somehow stopping light at precise distances without physical interruptions.

what about:

stopping light with gravity

stopping light with opposing light

stopping light with dark matter idk

use fire instead of light (not literally hologram but effectively the same)

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himo2785 t1_j354sgv wrote

You can’t control fire like that. In order to trap light you need something with the density of a black hole, crated instantaneously, which would pull in all other things around it whenever it started and you’d need both a way to contain it and a way to see the light that it eating.

There is no way to generate light from a fluid nonfixed point without a container of some form

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Falzon03 OP t1_j344tb0 wrote

Literally none of those are possible. Gravity has zero affect on light. Light does not affect light. Dark matter is hypothetical currently.

You could potentially do it with lasers and partials in the air but there are many variables to that.

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Captn_Porky t1_j34ajm3 wrote

gravity does affect light

https://physics.stackexchange.com/questions/34352/how-is-light-affected-by-gravity#34356
https://en.wikipedia.org/wiki/Gravitational_redshift

and light does affect light

https://en.wikipedia.org/wiki/Two-photon_physics

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Falzon03 OP t1_j34c8n0 wrote

I was mistaken on gravity affecting light with it affecting the speed of light.

However, the second link on light affecting light is in a very particular circumstance in the lab.

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Captn_Porky t1_j34i0ff wrote

theres also the possibility to do something like a controlled aurora https://en.wikipedia.org/wiki/Aurora

i dont think physics keep us from making holograms,
its just all pointless to do research in this area until quantum technology has matured

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