Our visual perception is essentially two-dimensional, given the shape of our retinas . Most people can mentally combine the two two-dimensional images they receive into a somewhat three-dimensional picture, called stereoscopic vision. Due to a misalignment of my eyes, I can only achieve that synthesis with considerable effort, and the resulting impression is so disturbingly unfamiliar that I immediately relinquish it. My only visual perception of a third dimension comes from observing the sizes of things and how much ground lies between them and me. But I’ve done it all my life, so it’s pretty much second nature.
In any case, we get confirmation of our perception of a three-dimensional space from our other senses: touch, hearing, even smell. All of the senses also appear to occur along a series of points within a fourth dimension: time.
Were it not for our perceptions, we could not know the “truth” about space and time. Or anything else, for that matter.
When I was fifteen, a “truth” entered my mind: You cannot know anything about which you have had no experience. While that may seem obvious to you, I had grown up with the concepts of Absolute Truth and Divine Revelation. The foundation of those concepts cracked when I accepted this new insight.
For the purpose of discussion, you could even say that truth is perception, because in order for truth to have any relevance it must be part of our experience — including in the term “experience” both the input from our senses and other forms of perception such as our thoughts.
“But!” I hear you cry, “Our perceptions can often be false!” True. Ha.
So let’s refine that definition: “truth” is the concordance of perception .
When we observe a discord in our perceptions, we say “that can’t be true”, or “we haven’t yet discovered the whole truth of the matter”, or “that must be wrong!” When we encounter a new perception that resolves the conflict, then we say that we’ve discovered a truth.
It’s certainly possible that some Ultimate Truth lies behind this process of discovery, but as far as our lives are concerned it’s irrelevant — because we cannot experience it outside our perceptions, which are anything but absolute. Personally, I don’t believe that there is an end to the road. Here’s why: to resolve discord in our perceptions, we generate new perceptions in our mind. But each new set of perceptions leads eventually to new discords. This in turn requires some new perception to resolve. In effect, we create the need for more truth. I don’t see that process leading to a final, static solution. Ever.
If a Grand Unified Theory were to be formulated, I suspect that it would raise more questions than it answers. I don’t think we could ever get to a point where we would say, “So that’s it. Nothing more to be thought. We can hang up our brains now.”
Proponents of logic may think that they can nail truth down. And indeed, they might be able to do so within the realm of what can be subjected to logic. But by limiting truth to that domain, they construct a well-ordered sandbox encompassing only a small portion of the seacoast of experience.
I’m not anti-logic. Don’t get me wrong. I believe that it’s a great tool for the dissection of ideas, but life is more than formaldehyde and scalpel.
What really ticks me off are those who try to use “logical” arguments to defend or refute concepts that cannot exist within that sandbox: the existence of God, for instance. Especially when they proceed to logically extend their “proof” into how I should live my life. That goes for rabid atheists as well as fundamentalists.
So if all this quest for truth only leads to a need for more truth, wouldn’t it be better if we hadn’t started down this yellow brick road to begin with? Why did our ancestors forsake a life like that of the bonobo to embrace mental toil?
In the evolutionary view, our ancestors apparently needed to develop their intellect to survive. In so doing, they acquired the ability to frame concepts that explain their perceptions and reconcile them. And so it began.
In the Biblical story of the Garden of Eden, eating the fruit of the Tree of Knowledge causes humanity to fall from that perfect life. They desired to be wise like gods, but only ended up creating a lot of work for themselves. Sounds like the same story to me.
“What is truth? ” Pontius Pilate asked Jesus, and didn’t wait for an answer. Soon thereafter, Pilate authorized Christ’s crucifixion — the source of the greatest truths and falsehoods in history, depending on what you ask of whom.
Another “truth” that came to me at fifteen: The greatest truths can be twisted into the greatest falsehoods. That still rings “true”.
But it means that not only should I be wary of those who try to hide a lie by clothing it in truth, I also want to avoid rejecting concepts wholesale just because they’ve been abused. In fact, because they’ve attracted so much falsehood, they might contain something worth investigating. With so much debris orbiting, something weighty should be at the center.
At least, that’s my perception.