One of my favourite modules during my Neuroscience studies had almost nothing to do with the actual practice of science. This fact seemed to confuse some of the academics as to why it then existed, and I would identify this confusion as the mean reason it ended up with such a bizarre and inappropriate name of ‘Biology in Society’. In essence, it was about the development of science (not just biology) through the ages, beginning with the ancient Greek philosophers.

A couple of learnings I took from this module were that our methods of understanding the universe have evolved enormously through the centuries, and also that as of the 18th century science really began to take over from religion as the de facto way of explaining just about everything.

I believe science to be of huge value but also grossly imperfect. My thinking behind this is not so much to do with science as a method, but the exponents of it… i.e. us.

The human brain has evolved a certain way over many, many years. As a result, it has given us an understanding of the universe that far exceeds any other species we share the planet with (to the best of our knowledge anyway, we have no proof that snails can’t explain the creation of the universe). We can perceive, and explain much. However, we only have so much space in the brain and so many neural connections that can be made. Evolution has sacrificed certain abilities along the way, to enable others to flourish. The parts of our brain dedicated to sensory input are vastly inferior to many other animals. The eyesight of a bird makes us look blind in comparison; it can see farther, processes motion in a way we don’t, and can even see different light spectrums that are invisible to us. There are things in the world we simply can’t perceive because our brains are not wired that way (although the tools we create can compensate in some cases). You can find examples for hearing, touch, taste, smell…

But we’ve evolved differently. Our frontal lobe is enormous compared with most of the animal kingdom (apes aside). This has given us some unique abilities and advantages. But it does not make us perfect.

The universe is deeply complex. We are simply a product of evolution. Why do we think that evolution has given us the ability to understand and explain everything? We already know that there are many things our senses can not perceive…but what else is there that we do not yet know about? Are we so special, that it just so happens that the evolution of our brains allows us to understand everything about how the universe works? Oddly, that seems to be the expectation. On the whole, as a species, we see ourselves as some master race. We’re not; we’re just different to the others. And oddly, of all the species on the planet, we seem least able to exist in harmony with our environment.

There are many fundamental concepts we have been unable to explain. The way forces act on the universe (hence the creation of the as yet unproven forces of dark matter, dark energy and dark flow). Theories that there are four , five or even six dimensions. That other universes may exist around us.

Human thinking is somewhat binary in that there either is something, or there is not. Such thinking bumps in to obstacles. Although we have theories now around the big bang, they mostly seem to posit that a couple of random particles bumped in to one another. But where did they come from? How was there space around them in the first place? Somehow, there was once nothing and then there was the universe. Try and get your head around that. How did absolutely nothing at all turn in to something? That makes no sense. And how is that once nothing existed at all? Or perhaps the universe is timeless, it has always been here. But again that doesn’t seem to fit our way of thinking…how can we analyse that? Stick that in to our formula? Our brains don’t handle the concept of infinity especially well.

A similar example is the size and shape of the universe. There must be an edge right? Whatever shape it is, again this requires that there be something (the universe) and then…what? Nothing again? What is outside of the universe? And like with respect to time, perhaps the dimension of space is also infinite. So yet again, we bump against a concept – infinity – that we struggle to comprehend.

It might just be possible that in between nothing and something is a concept that we aren’t capable of understanding. That for all that our brains can do as a result of evolution, they can’t quite figure this one out. We can’t explain everything that is going on around us in the universe, because we have limitations. The universe did not develop specifically to fit in to the paradigms of understanding of just one its countless species.

And let’s think about this for a moment…thanks to evolution we have learned to better understand the world around us. This has been an adaptive mechanism that through developments such as medicine and technology enables us to thrive as a species like none other. Our understanding of our planet is phenomenal. However, why would it be adaptive in evolutionary terms for us to understand the universe? Up until midway through the last century we had never even left our own planet. In a fierce and competitive environment in which every little bit of space in our brains has evolved to give us an adaptive advantage, why would space be wasted trying to understand concepts like the beginning of the universe which have little to no impact on our ability to survive on Earth? Take the example of infinity – the Earth is finite and full of finite limits. Understanding infinity would not help us much here.

Of course, this does beg the obvious question of why we would even try to do so, and I’m afraid I have no answer to this.

We do a mighty impressive job, but I don’t believe everything in the universe fits within our limited way of understanding and explaining things. Heck, we don’t even understand our own motives most of the time.