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According to our current understanding of time travel, if it were possible for humans to travel back in time, they would not be able to see themselves "travelling" around in the past. This is because time travel to the past is commonly associated with theories that suggest a single, consistent timeline without the existence of multiple versions of individuals or objects.

In a single timeline scenario, if a person were to travel back in time and interact with events or their past self, they would simply become part of the existing events and memories of that time. They would not see themselves as separate entities or encounter their past self as a distinct individual.

This idea aligns with the principle of causality, which suggests that events in the past have already happened and cannot be changed by a time traveler. Therefore, any actions performed by a time traveler in the past would already be accounted for in the timeline, without causing duplications or alternate versions of individuals.

It's worth noting that there are different theories and concepts related to time travel, and interpretations can vary. Some fictional works, for example, explore the concept of multiple timelines or parallel universes, where individuals might encounter alternate versions of themselves. However, such concepts remain speculative and go beyond our current scientific understanding.

In summary, if time travel to the past were possible within a single timeline framework, time-traveling humans would not observe themselves "travelling" around, but rather become part of the existing events of that time without encountering their past selves as separate individuals.

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