Time is our most precious resource in this world. It is the only tangibly finite object that we have entirely no control over, and it is precisely because of this that it is so valuable; we can never get it back. That being said, how “real” is our past as a physical property? Can we study it? Does it still inhabit our plane of existence?

I recently read a nonfiction book by scientific communicator Sabine Hossenfelder, and she asked me a burning question I didn’t realize I needed the answer to. Does scientific evidence tell us that the past subsists just as the present does? Intuitively, I think most of us would argue against the affirmative, as the idea of the past being a physical property equivalent to the present is starkly against our perception of life. Unfortunately, though, Einstein proved the opposite, and you can’t argue with a dead man.

Einstein’s theory of general relativity told us that time—as a physical quantity—is not actually a linear, universal constant; it is subject to the rate at which we move. Excluding the fact that it cannot be reversed, time is not absolute. Transitively, we cannot extrapolate and infer that the past, present, or future holds any more physical significance over the other. They all exist in the same way.

Of course this idea is not entirely foolproof, but it seems to be a very accurate description of how the nature of time operates. Perhaps this idea terrifies you, but, depending on how you look at it, this can be a very comforting idea. Our idea of the past is inherently subjective and highly biased to the whims of our mind, but somewhere in the universe exists the good, the bad, and the ugly of your past. Somewhere in the universe, your bad grade is haunting you, that package you’ve been looking forward to came in, your grandmother is still alive.

It’s all a matter of perspective.

Written by

angelinarisnoveanu

Angelina Risnoveanu, senior, is a diehard fan of dramatic novels, Denis Villeneuve movies, and existential physics. You may find her roaming through the OLu halls listening to Radiohead, panicking over Physics C, or jabbering about Viggo Mortensen as Aragorn—though it may be difficult to tell.