We just don't know

Is it evenpossible to explain colours to a blind man? – ‘Eyesight’ cannot be defined by our remaining senses and thus if humans never had the gift of sight we would be pursuing Science without sight. For all we know, there are a million senses out there. Just like there are a million colours that we cant see, because we are limited by our inability to see outside the visible spectrum. Our senses could very well be the most deceptive bunch of senses of the lot. Thus making everything we sense a big deception.

Everything we know and will know is just a product of what our five senses and a some cognition through a pink mushy flesh called the brain. Everything we can perceive and explain is done just by using the five senses or through something built using the five senses. So all the possible knowledge we can possibly know is five basic senses at the lowest level. You could throw in pressure detection, thermoception and gravitational balance along with a few other senses to complete the list. Yet the simple fact is that we can only perceive or ever know what is possibly detectable by these senses. In a way think of this as an axiom system given a few axioms to understand all of reality. The most irking thing is that the axiom system may not even be complete and it is impossible for us to even know.

Relevant stuff

A great book made into a movie that further proves my point : Flatland

An object in a 1D can only ever see a point(0D). An object in 2D can only see a line(1D)                                                     and clearly an object in 3D can only see area(2D).

Here is a relevant story : The 4 blind men and the elephant.

There are 4 blind men who want to know an elephant, touch the elephant. One catches the trunk and proclaims that it is a snake. The second catches the tail and concludes that it is a rope. The third explores the leg and describes it as a tree. The last feels the tusk and tells everyone that it is a spear.

Here is a common, well known existential meme