/jp/ - Otaku Culture

Finished Kiss's route.

Consider the double slit experiment. Light takes time to travel, so there must be a delay between the electron passing through the double slit and the observer observing it, right? Imagine you place the experiment sufficiently far away that the person can choose to observe or not observe the experiment after the electron passes through the double slit, then that choice decides whether the electron behaves as a wave or a particle. Then you're changing the past, right? Since you're influencing an event that happened before you made the choice.

This might seem trivial, but it makes sending information back in time possible. Set up a bunch of double slit experiments, then future you can choose which ones to observe, sending a message in binary to past you when you check to see which particles formed wave patterns.

I can see why this wouldn't be possible in practice due to the limitations of working with light-speed distances and the difficulty of controlling observing, but anyone know why this isn't theoretically possible? Because it seems to me to be clear proof that sending information back in time is possible.