As of our current understanding, time travel without technology, including through the use of magic, remains speculative and falls within the realm of science fiction and imagination. However, if we were to explore the concept of time travel without technology, here are some theoretical possibilities and limitations:
Time Dilation: Time dilation is a phenomenon predicted by Einstein's theory of relativity. It suggests that time can be experienced differently depending on one's relative speed or proximity to a massive object. For instance, traveling near the speed of light or being in the vicinity of an extremely massive object could cause time to pass more slowly compared to an external reference frame. While this could result in time appearing to pass differently, it wouldn't allow for traveling to specific past or future moments.
Wormholes and Space-Time Bending: According to certain theoretical physics models, the existence of wormholes or the bending of space-time fabric might offer a way to traverse time. These concepts involve creating a shortcut through space-time, allowing for a potential "shortcut" to the past or future. However, the actual formation and manipulation of wormholes or space-time are highly speculative and require exotic forms of matter or energy that have not been discovered or understood.
Quantum Mechanics and Entanglement: Quantum mechanics, the branch of physics that describes the behavior of subatomic particles, introduces intriguing concepts such as quantum entanglement. Some theories propose that exploiting quantum entanglement could lead to the creation of "time machines" or "closed time-like curves." However, the feasibility and practicality of these ideas remain purely theoretical and hypothetical.
Paradoxes and Causality: Time travel to the past often raises concerns about causality and paradoxes, such as the "grandfather paradox" where one could potentially prevent their own existence by altering the past. These paradoxes create logical inconsistencies and challenges in understanding the possibility of time travel. Resolving such paradoxes remains an ongoing topic of debate and speculation.
It's essential to recognize that these concepts are purely speculative and highly theoretical. Our current scientific understanding suggests that time travel without technology, including through magical means, is not possible. However, the study of these ideas in science fiction and theoretical physics allows for creative exploration and fascinating storytelling.