By way of summary, I will answer five questions regarding time.
1- What is time?
Time is the physical magnitude that increases continuously due to the process of becoming. The two aspects of time are becoming and duration.
2- Does time exist?
Of course time exists. If time did not exist:
1- Becoming—that is, change—would not exist.
2- Everything would have already happened.
3- Velocity would not exist, since velocity is equal to distance divided by time; that is: v = d/t.
3- Is it possible to travel through time?
No, it is not possible to travel through time, since neither the past nor the future exists. The past consists merely of memories, and the future, of imaginings. Time travel is possible only in the mind and in science fiction movies.
4- Is time a dimension of space?
Spacetime was a mathematical construct devised by Albert Einstein to explain gravity. Time is independent of space.
5- Can we perceive time?
We perceive time through changes, but not the magnitude of time itself. Duration is sub-perceptible; that is, we perceive only the beginning and the end of intervals.
Elvis Sibilia, Florida, United States
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