Why can’t people teleport? | Wired

Let’s deal with: No one likes to travel.

Whether they are traveling to an outdoor location for a vacation or traveling on a daily commute, no one likes the part where they have to travel. Those who say they like to travel probably like them Arrive. This is because being somewhere can be really fun: seeing new things, meeting new people, working early so you can go home early and read physics books. Original Travel The part is usually a pull: get ready, hurry up, wait, hurry up a little more. Anyone who says “this is a journey, not a destination” obviously didn’t have to sit in traffic every day and never got stuck in the middle seat on a transatlantic flight.

Wouldn’t it be great if there were better ways to get to places? If only you could do that Displayed Where do you want to go, without all the space in the middle?

Courtesy of Penguin Random House

Teleportation has been a constant in science fiction for over 100 years. And who doesn’t imagine closing their eyes or jumping into a machine and suddenly figuring out where they want to be? Think you want to save that time! Your vacation may start now, not after a 14-hour flight. We can go to other planets more easily. Imagine sending colonists to the nearest habitable planet (Proxima Centauri B, four light-years away) without spending decades in transit.

But is teleportation possible? And if so, why is it taking so long for scientists to make it a reality? Will it take hundreds of years to develop, or can I expect it as an app on my phone soon? Astonish your phages, because we are going to enlighten you on the physics of teleportation.

Courtesy of Penguin Random House

Options for teleportation

If your dream of teleportation is to stay here one moment and be in a completely different place the next, we are sorry to tell you directly from the bat that this is impossible.

Unfortunately, there are some hard rules in physics Something Happening instantly. Everything that happens (an effect) must have a cause, which requires the transmission of information as a result. Think about it: in order for two things to be functionally related to each other (like you’re disappearing here and you’re appearing somewhere else), they need to talk to each other. And in this universe, everything, including information, has a speed limit.

Information has to travel in space like everything else and is the fastest Something The speed of light can travel in this universe. Indeed, the speed of light should have been called the “speed of information” or the “speed limit of the universe.” It is baked into the concepts of relativity and cause and effect, which are at the heart of physics.

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