Disproving the theory that UFOs are future humans traveling back to our time is challenging because it involves proving a negative, which can be difficult. However, there are several reasons why this theory is considered unlikely and not supported by scientific evidence:
Lack of verifiable evidence: While UFO sightings have occurred throughout history, there is currently no concrete, verifiable evidence to support the claim that these unidentified flying objects are future humans. Most UFO sightings can be explained by natural phenomena, misidentifications, hoaxes, or other known objects.
Absence of time travel evidence: Time travel itself is a speculative concept and has not been proven to be possible based on our current scientific understanding. While there are theories in physics that allow for the theoretical possibility of time travel, such as certain solutions in general relativity, actual implementation and evidence of time travel are lacking.
Plausibility challenges: The idea that future humans would choose to travel back to our time specifically and in unidentified flying objects raises questions. It assumes that future humans possess advanced technology, have discovered practical time travel methods, and have a strong motivation to visit our specific time period without clear communication or interaction. It requires assumptions that go beyond what is currently known or supported by scientific understanding.
Alternative explanations: Many UFO sightings have been attributed to more plausible explanations, such as atmospheric phenomena, aircraft misidentifications, weather balloons, or unconventional military aircraft. These explanations are more consistent with our current knowledge of the world and do not rely on speculative notions of time travel.
While it is difficult to disprove any speculative theory definitively, the lack of concrete evidence, the absence of scientific support for time travel, and the plausibility challenges associated with the theory make it unlikely that UFOs are future humans traveling back to our time.