The concept of time travel is a topic of speculation and debate in the realm of physics and philosophy. However, based on our current understanding of the laws of physics, time travel, particularly to the past, is not considered feasible.
One of the main challenges with time travel to the past is the presence of paradoxes, such as the famous grandfather paradox. This paradox suggests that if you were to travel back in time and somehow prevent your own birth or cause harm to your ancestors, it would create a contradiction. This contradiction raises questions about causality and the consistency of the timeline.
Regarding your question about an unobserved time warp, it's important to note that there is no scientific evidence or confirmed understanding of time warps or their existence. The concept of a time warp usually originates from science fiction rather than established scientific theories.
However, if we were to consider a hypothetical scenario where a time warp exists and goes unobserved, it would still need to adhere to the laws of physics and address the paradoxes associated with time travel. The consistency of the timeline and the preservation of causality would still be significant challenges to overcome.
In summary, while time travel remains an intriguing concept in fiction and popular culture, our current scientific understanding suggests that traveling to the past is unlikely to be possible, even if certain hypothetical conditions, such as unobserved time warps, were to exist.