Colour does not actually exist in the real world. It is only something that your brain does to differentiate between one frequency of electromagnetism collected by your retina and another. When you look at a gorgeous red apple, that apple does not objectively look like that at all.
Because the brain uses trickery not to be confused, and because all our brains use the same trick, humans have convinced themselves that the objective world has a certain shape and form. That is why you’ll hear people talk about eternal truths and objective natures. There’s nothing of the sort. It’s all mind tricks from that mammalian collection of cells that live between all our ears.
Once you realise that the delicious looking red apple is just a mind-trick, then there are a lot of other things that can be questioned. Assumptions that have come about because our heads insist on saying that whatever is outside our physical bodies are the objective reality.
Our senses are limited. We only hear a certain wavelength spectrum; we only see certain electromagnetic frequencies; we only feel things within a very narrow tactile and temperature range. Our taste buds can only sense a certain amount of molecules, and our noses can only detect smells if they pick up more than a certain amount of molecules, which are counted in parts per million. Those limitation limit the information that our brains can process and handle. Outside of those limitations, the universe does not exist.
The benefit of being human is that we have reason, so we can understand that there are things outside those limits. We have technological helpers that can and do detect outside our natural limits. We have night vision binoculars, we have radio telescopes, and we have sound amplification. But even though our gadgets can show us what is beyond our senses, our brains still insist that the universe conform to our limitations.
By volume, number and mass, there are far more amoebas on Earth than there are humans, so by a democratic ideal humans would be outvoted on the ‘this is natural and objective’. Amoebas certainly do not perceive the universe as humans do.
So, the universe in its basic form does not conform to the human idea about the shape of it. So why should human ideas like ideology and ism:s have any sort of eternal truth in them? Religion? All ideas depend on the limitations of our senses, because that is all we can imagine. We can not see the red apple as it really is.
Is it not better to be suspicious of what our brain tells us about the world? Is it not better to doubt everything and only accept that which there is real evidence for – regardless if our scepticism is about the world, politics, economy or religion?
Does not doubt bring us closer to a truth?Is it not doubt, rather than certainty, that show the true world? If we all were blindfolded and only had our hands to touch an elephant with, then eventually we could describe the elephant. But that’s because we can reason our way to it. Our senses and our limitations would lie to us.