I promise you, BBC's Roland Pease, that it's possible the sun won't rise tomorrow and Linus Torvalds with announce that he will be Microsoft's next CEO.
That sounds like a sales pitch. Oh wait, scroll to the bottom, this is a sales pitch. Classic tactic of making the incredible sound easy, just pay a small fee!
He asserts that we can prove that it is better for so-and-so to perceive according to "fitness" rather than according to "truth", and maintains this is true with mathematical rigor; fine.
This is observably true (allowing me the possibility of observation for the space of this conversation) - predators, for example, usually have forward-facing eyes and vertically-slitted pupils, which allows them to focus and react to motion of prey in front of them; prey often have widely-spaced eyes allowing a greater field of view. Fitness literally makes you see the world differently.
However, there is an important dimension that I think he missed (or several), which is that the fitness function governing a trait is a vast, multi-dimensional space.
For example, using color we may distinguish between unripe, hard-to-eat fruit (green) and ripe, healthy fruit (reddish-orange). According to his argument, we should therefore only need to see these two colors. Of course this is incorrect, because if our vision were so limited we'd just be running into trees all the time. Now our fitness function is spread across two, completely unrelated goals - suddenly, it becomes much more attractive (and simpler) to come close to apprehending reality accurately, thereby killing two birds with one stone. It only gets worse as the number of goals we add to our fitness function for perception increases.
Furthermore: the space of "goals" is itself a function of the genetic diversity in your population. A species with a lot of spare genetic diversity lying around will be able to refine traits with selection much more efficiently. This means we can develop all sorts of wonderful toys (like a face-matcher) that can augment our perception of reality.
Of course, in the end, we're just modeling reality, we can't Know it in some Buddhist sense; but there is good reason to believe that perception should lean heavily towards a simple objective representation of reality, and that fitness is not such a close rein on it all the time.
Our senses are still only tuned in to detect portions of "reality" that are relevant to life on earth. For example, our eyes detect the band of EM radiation most useful during daytime on Earth. But even though are eyes are narrow band and highly non-linear sensors, they (+our other equally flawed senses) have served us pretty well as far as understanding the true nature of EM waves.
I guess my point is that our senses still aren't evolving to detect reality in some sort of true pure mathematical sense.
I have taken a lot of inspiration from http://motherfuckingwebsite.com/ and http://bettermotherfuckingwebsite.com/
Of course the size will differ depending on the site's purpose, but I feel like most web pages could stand to loose a lot of weight.
EDIT: I have a guide to setup a similar blog/site here[0]