[d0mine]

> how our brain construct

is the only part i.e., we perceive what brain predicts no more no less. Optical illusions demonstrate it well.

Sometimes that prediction (our perception) correlates with the light reaching the retina. But it is a mistake to think that we can perceive it directly. For example, we do not see the black hole in our field of vision where there are no receptors (due to our eyes construction).

Another example that makes the point clearer: there are no "wetness" receptors at all but we perceive wetness just fine.

[nkrisc]

It’s an important point: all our sensations are interpretations of readings from various sensing abilities.

Which is why it can be so easy to produce false sensations of many things. It’s like tricking your fridge into turning the light off by pressing the little switch instead of closing the door. The fridge isn’t detecting when the door is closed, it’s detecting with that switch is pressed and interpreting that as meaning the door is closed. However that interpretation may not always be correct.