No, it is not scientifically proven that people can turn back time in the way it is often depicted in science fiction or popular culture. The concept of turning back time or time travel into the past is a fascinating idea and has been explored in various theoretical frameworks, but there is currently no experimental evidence or scientific theory that supports its feasibility.
According to our current understanding of physics, time is a one-way arrow, and events progress in a forward direction from the past to the future. This idea is encapsulated in the Second Law of Thermodynamics, which states that the entropy (a measure of disorder) of an isolated system tends to increase over time. This principle is widely observed in nature and is one of the fundamental reasons why time travel to the past appears to be challenging.
Various theories in theoretical physics, such as General Relativity and some interpretations of quantum mechanics, have suggested hypothetical scenarios where time travel might be possible, like closed timelike curves or wormholes. However, these concepts often involve highly speculative and challenging conditions, such as the existence of exotic matter with negative energy or the ability to manipulate black holes, which are far beyond our current technological capabilities and theoretical understanding.
As of now, time travel to the past remains firmly in the realm of theoretical speculation and science fiction. Scientists continue to explore the fundamental nature of time and the laws of physics, but until solid empirical evidence or a widely accepted theoretical framework is established, turning back time remains a fascinating concept that is yet to be scientifically proven.