A recent study has shed light on the possibility of time travel at a microscopic level, challenging long-held beliefs about the concept. Researchers from the Technical University of Darmstadt in Germany conducted a study published in Nature Physics that examined the time “shuffling” in the structure of materials such as glass.
The study found that time does not behave linearly, particularly in the composition of materials over time. Glass molecules randomly move to new places, effectively reversing time on a molecular level. To test this idea, scattered laser light was used to observe the glass samples pushing and reforming into new arrangements. The fine fluctuations in the molecules had to be documented by an ultra-sensitive video camera, as stated by Professor Blochowicz.
This continuous internal movement in glass makes it impossible for scientists to determine whether the changes are occurring forwards or backwards in time. While it does not bring humans any closer to being able to travel in time, this discovery will undoubtedly change perspectives on the materials used in daily life.
However, another study conducted in 2023 has ruled out the concept of time travel altogether, stating that time in the universe can only move in one direction. This research explored light and its relationship with other objects and provides a new understanding of what is theoretically possible regarding time travel.