Recent comments in /f/space

LunaticBZ t1_jdqlzfr wrote

Reply to comment by [deleted] in Can I look into the past? by AGARAN24

I'm not knowledgeable enough on this subject to have an informed opinion. But couldn't quantum entanglement allow one to technically transmit information instantly?

I say technically since you'd need to physically transport one part of the pair. So you couldn't break causality with it.

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colinsfordtoolbumb t1_jdqlkrb wrote

I think a better a way to frame this to avoid getting hung up on the quantum mechanic thing is asking if a theoretical astronomer on a distant planet viewed the earth and could see its surface, what would they see. (Ignoring the kind of telescope you would need to even do that but this is theoretical fun so whatever!) If they were 100 light years away, would they be looking at earth 100 years ago.

I think your question is more about, that than anything else? Could be wrong.

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AGARAN24 OP t1_jdqlk6v wrote

Hmm. So in future ,if we somehow make this all possible, we could technically get photos of dinosaurs too.

Or in the far ahead future with zillion x zoom camera, we can get into a wormhole far away from earth, take a pic of earth and see how pyramids were made. Haha crazy stuff.

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AGARAN24 OP t1_jdqlda7 wrote

Reply to comment by jpo234 in Can I look into the past? by AGARAN24

I read an article long back, regarding quantum entanglement, where scientists have used it to transfer data instantly and hypothesized it can be developed to transfer more data between edges of space instantly. I am no scientist, this is just what I read online which led me to this thought.

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AGARAN24 OP t1_jdqlbm0 wrote

Reply to comment by [deleted] in Can I look into the past? by AGARAN24

I read an article long back, regarding quantum entanglement, where scientists have used it to transfer data instantly and hypothesized it can be developed to transfer more data between edges of space instantly. I am no scientist, this is just what I read online which led me to this thought.

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Interesting-Piece483 t1_jdqkgar wrote

I am not an expert, this is just my opinion. I agree, I think it's a lack of understanding of the interstellar medium. Currently, we have observed portions of deep state can vary in density between 0.0001 ions per cubic centimeter to a million ions per cubic centimeter, but this would be very hard to measure. If the average is on the higher end of the range, or higher than expected, we could vastly miscalculate the expected weight of normal matter given the sheer size of "empty" space. Furthermore abundance of heavy elements in the solar system point to a supernova event in our vicinity in the past which may have locally emptied/blasted away the particles around us, what if real space is less of a vacuum than we think and there is the missing mass.

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No-Zucchini2787 t1_jdqk4jb wrote

You are looking at the past when you see sky. Always. Anyone on proxima Centauri will see earth as if was 4.5 light years ago. Betelgeuse might have already exploded. We are Andromeda as it was 4.5 millions year ago. Today Someone far away can see earth as dinosaurs are roaming. Time is relative.

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jpo234 t1_jdqjyr2 wrote

Since you are inventing your own laws of physics (It transmits everything instantly through some quantum concept), you can do whatever you want.

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