The answer to the universe may not be 42 (hat tip to the late Douglas Adams), but its unreality.
That is, it is unreal in the way that most of us think of reality. For example, we perceive that the universe unfolds in a linear fashion, that we exist in corporal form, and that the future cannot influence the past. But that’s not my impression anymore. It’s based on reading a lot about physics and quantum mechanics and more recently from watching a lot of YouTube videos on these topics.
In many ways I believe that we actually are living in the matrix, but not The Matrix presented in three movies of the same name. These movies fancifully depict our lives as hallucinations controlled by machines. If I sound like a raving lunatic, then there are a lot of physicists who agree with me. Physics is revealing certain things about our universe that cannot be explained by the way we think we perceive reality.
It was Albert Einstein who first coined the term space-time. Basically, he discovered that space and time do not exist separately, but they are one thing, whose shape can be perturbed by gravity (which turns out to be a much more mysterious force than space-time.)
On the other end of the spectrum is string theory, the study of the extremely small, which tries to explain just what matter and energy are. We are enmeshed in the fabric of the universe, the physicist Brian Greene wrote in a book of the same name. It was largely his book, which I read back in 2004, which has kept me engaged in this topic since then.
Just as a TV screen consists of pixels, the fabric of space-time appears to have a fundamental unit much, much smaller than an atom. It’s Planck’s constant, which is not a measure of a distance as it is a constant used to express the energy carried by a photon in relation to its frequency. Its value, by the way, is 6.626070150 × 10-34 Joules per second, exactly. The International Standards Organization formally refined its value just five days ago. As best we can tell, it defines the reality we experience, or more specifically an “atom” of space-time itself, something that cannot be further subdivided. This is the stuff that we, but really everything, are made of.
If there is anything apart from the universe, it may be consciousness itself. As best physicists can tell us, time is an illusion, perhaps a mechanism created by consciousness itself to make sense of the universe it is either placed in or observes. Given that space-time exists, but neither space nor time exists as a separate entity, then past and present are permanently linked, and what we perceive as the future influences our past as much as our past influences our future. Who we are is really some subset of space-time. At least in theory it can be played like a recorder, or even played backward.
The more I study quantum physics, the more what appears to be wacky stuff seems to be merging with our “reality”, such as it is. Atheists believe there is no afterlife and there is no soul. It’s a reasonably inference given that most of us don’t see ghosts. If we witness a car running into a brick wall at 100mph, we feel certain its driver is dead. And I won’t argue that that driver is indeed dead, at least as we are bound to perceive him or her in a linear time frame. I think it’s more accurate to say that because we experience the illusion of time, they are dead to us. Yet there they remain, like in indelible ink, caught forever in the matrix of space-time. Our inability to not experience the universe as it actually is, but only linearly, is a deficiency. It’s also an illusion; our shared illusion. Or perhaps more accurately it’s our shared delusion. If souls exist then almost by any definition they travel independent of linear time.
Birth, death and likely living itself are illusions. While ultimately illusions, they are also indelibly real, which makes them hard to figure out. If you are a prisoner traveling in a linear time frame, then they cannot seem to be anything but real. But now physicists are telling us that because space-time is a thing, that our experience of time is indeed an illusion.
I prefer to think of a life as a path, or perhaps a journey, one of an infinite number of paths that can be chosen through space-time. Consciousness itself appears to choose the path we are on. We experience what is before us and react to it as best we can within the limits of our ability to perceive, understand and choose. It may be that we can experience many “lives” through space-time through this thing called consciousness. Hopefully with each reincarnation we do a better job of it.
So everything we experience is both real in a linear sense, yet surreal based on our understanding of the nature of the universe. This is why for me understanding physics is the ultimate head-trip. It describes the nature of reality and what we perceive as reality. It’s clear to me that we are part of a vast and seemingly infinitely complex virtual reality where the perceived and very real (to us) linear parts are very slowly being revealed, thanks to the physicists studying our universe.
Still confused? You have every right to be. But for me this understanding makes more sense the more I study it, and makes me realize certain things. For example, there is no more reason to fear death than birth. We should not fear the escape death might bring us from this experience of linear time that we are trapped in. Death may be the ultimate liberation. Soul may be nothing more than our eternal consciousness as we experience it in a space-time universe.
You may find this video by Quantum Gravity Research to be helpful in getting your mind around this: