How the Quantum Eraser Rewrites the Past | Space Time | PBS Digital Studios

22 thoughts on “How the Quantum Eraser Rewrites the Past | Space Time | PBS Digital Studios”

1. Stop with the stupid facial expressions, please. I am begging you. Science doesn't need the hype. It's cool enough without the Spock eyebrow raises and your mannerisms just make it look cheesy.

2. Who cares if a nonphysical interpretation keeps things from traveling faster than the speed of light when information is being sent backward through time? Can information move backward through time at slower than the speed of light? I don't think so..

3. Sounds like a malfunctioning detector. Oh my god… does this make me a genius!?

4. why two slit why not try two tiny holes

5. quantum particle entanglement
   [laughs in voodoo doll]

6. It’s like a video game glitch

7. What happens if you place a barrier 1/16 of the size of the possible width. Does that change the pattern or reduce the number that arrive?

8. I know nothing but if cell in a female egg knows where to go surely your particles know too

9. You always wear household T-Shirts. Why not wear something more presentable. You are presenting to a good class of people.

10. Alright, hear me out. Viewing this from a programmer viewpoint is freaky. If you've ever made a game or simulation of sorts you understand that before any action can occur the outcome needs to be calculated before it actually happens. If the universe is a simulation, perhaps every occurrence has already been calculated beforehand by some "algorithm"? Such as how the photons properties are decided before they actually occur. If we can simulate a path of a photon in a computer simulation by calculating it's path, then we already know where it will end up (by algorithm). The universe may as well have similar properties. Which means our future may have already been decided.

11. doesn't that just prove special relativity? I mean, the entangled pair, moving at the speed of light, experience zero time, so that when one behaves as a particle and then the other does as well, they are not changing retroactively because no time as passed for them, only us.

12. Couldn't you use just 1 detector and turn it on and off to send the signal…

13. What if you trained an AI to observe the results but not disclose the information until a set amount of time has passed, an amount of time that the experiment continues after the initial result has been recorded.

    Would we see the result change instantaneously once the observation was remediated?

14. Don’t worry bud this episode won’t make much sense even if I watched the first one???

15. Double up the experiment by increasing the distance of the particles haul road and reversing the observation. As the particle comes through the 2 slits( without observation) it generates 2 choices, knowing the outcome and not knowing the outcome. Knowing the outcome will form 2 lines but to not know would form the wave multi lines, but what if you ran it through an additional 2 slit wall while knowing and observing the un known multi cluster?? Simply by implementing the exact opposite of the outcomes to get the reverse of either outcome. Simplifying further- , While observing the results of the multi lines wave form, place a known source of ( travel > destination) in the way, if the results seem 2 cluster up then I would like to see how far the particle will travel by placing an incredibly long line of known and unknown paths back to back with multiple slits at different length( multiple observation experiments before and after first slit and through out different slit locations. I wonder if their is an enhancing method to how far the particle will travel and or increasing the energy of said particle, much like Direct current being strong but only in short increments rather then Tesla's Alternating current being,"not as strong at short distances", but sustained current at further distances away from where the electricity was generated. Purpose – Lets trick the Beast!

16. The nature of why public opinion constantly changes with the times as technology advances.

17. It's pretty funny that this video is linked to from sciencewoke.org as an example of how mainstream science is pure madness. :'D

18. So the interference pattern formed after the photons get through to C and D is only caused by the photons that don't get detected- how is that erasing anything ?

19. How do we know that the photon we're using to light up A or B will fall exactly on the detector ? If we're directing them in any way, wouldn't that affect the pattern too?

20. I heard when u arent observing it the particles move all over it some go through the slit

21. if we are a computer simulation the quantum eraser experiment would make sense. if you assume simulated reality is less resource intensive when particles are unmeasured (therefore don't have a definite state) then something like a predictive algorithm makes sense instead of retro causality.

22. You dumbasses can't even figure out that it's the prism that is collapsing the wave

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