Based on our current understanding of physics and the laws of causality, there is no scientific evidence or theoretical framework to support the idea of going back in time to erase or change past events. The concept of altering the past in a way that would create a paradox or contradict causality is a subject of debate and speculation.
The prevailing scientific view is that time travel to the past, if it were possible, would likely be subject to certain constraints or limitations. For example, some physicists suggest that even if time travel were achievable, it might only allow for the observation or exploration of the past without the ability to change it. This idea aligns with the concept of the Novikov self-consistency principle, which proposes that any actions taken in the past would be predetermined and consistent with the events that have already occurred.
It's important to recognize that the ability to go back in time and alter the past is purely speculative and firmly rooted in the realm of science fiction. While it may be tempting to ponder the idea of correcting mistakes or altering history, for now, it remains outside the realm of scientific possibility.