Imagine you had the ability to go back in time. But when you returned to the present, you discovered that you didn't remember anything about it. Physicists believe this is a real consequence that time travelers may face.
The study was published in the journal Classical and Quantum Gravity, the study said Interesting engineering.
While most research has focused on the mechanics of time travel, little attention has been paid to its impact on the traveler. A novel study suggests that time travel may come with unusual side effects, most notably the loss of all memories of the trip.
Scientists believe this phenomenon is related to the concept of a “closed time-like curve” (CTC), a feature of Einstein's general theory of relativity.
A closed time-like curve is a concept in Einstein's general theory of relativity, according to which space-time forms loops under certain conditions. These loops create paths in space-time that return to the starting point, allowing time travel to an earlier point.
According to scientists, when someone goes back in time and returns to the present, the second law of thermodynamics states that entropy, or the degree of disorder in a system, always increases over time.
This process cannot be easily reversed, as it would mean a decrease in entropy, which does not naturally occur in the universe.
Physicists believe that when a person travels along a closed time curve, going from the present to the past and then back to the present, his entropy should first boost, reach a peak, and then return to the same level.
According to the study, once entropy reaches its peak and the time traveler returns to the present, disorder begins to decrease, and as a result, all thermodynamic processes, including biological processes such as memory formation, are reversed.
Therefore, it is unlikely that the person will remember anything from the trip to the past, as their memories will be erased before they return to the present.
You might think that if you don't remember your time travel, you can take a photo of the events and then look at the photos and remember everything. But physicists say that the second law of thermodynamics applies not only to humans, but also to machines and other inanimate objects.
So if someone saves data on their smartphone while traveling in time, it will most likely also be deleted as soon as they return to the present.
The study's authors also concluded that a wristwatch may show the wrong time during time travel because it is designed to only move linearly. Although time travel is theoretically possible, humans do not have the ability to travel into the past, which means physicists' discoveries cannot be tested.
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