Time is such an exciting concept, amazingly challenging to understand even for the greatest philosophers and physicians. I think Socrates said 2500 years ago that time is the most difficult concept for us to understand.

“When you sit with a nice girl for two hours you think it’s only a minute, but when you sit on a hot stove for a minute you think it’s two hours. That’s relativity.”

Albert Einstein

In physics and general relativity, time is often spoken of as part of four-dimensional ‘spacetime’, consisting of the regular three dimensions of space we can see plus time. I wonder if the dimensions of time work similarly to the other three dimensions. For instance, imagine a species that could not move or see the height of things, and can only experience the two dimensions forward/backward and right/left. Eventually, they would discover that there is such a thing as height in their scientific models, but it would be difficult for them to grasp intuitively. Similarly, I wonder if there could be other species, in principle or reality, that could see sequences of time simultaneously just as we can see a range of height, width, and depth simultaneously. For obvious reasons, we do not know our own limitations, meaning that it could be possible that our senses are limited to interpreting three dimensions of space, but could in theory also perceive time the same way. I am amazed that science has brought us so much knowledge across many fields of study, while despite thousands of years of trying, it has yet to reach a good understanding of such a primary concept as time.