Talking about that, I once read a passage said birds can see RGB along with UV. Their world is much more colorful than humans.
I wonder what that means to me. The RGB vision I have is colorful enough for me, I don't know if my brain can handle those extra color space.
Also, unlike scifi, human brains can imagin something like space travel or time travel, I noticed that my brain (as it can represent the average human brain, I guess?) has difficulties imagining senses. The most obvious one is the taste, when I can't reproduce what others claim, with the same dished.