Red, Yellow, Green..... and Pink?

We were playing a card game at Danyael's parents' house yesterday, and Andrew threw out a gem. The card game was being played with Uno cards, but only the red, yellow, and green cards. Andrew observed this, and drew the comparison between those colors and traffic lights. He has know for some time that red means stop, and green means go. Yesterday, he said that red and yellow mean stop, and green and pink mean go. ??? I asked him what he meant, why pink, and he reasoned that red and yellow go together, and there are two colors for stopping, and therefore there must be two colors for going, and pink goes with green, so obviously, green and pink mean go.

Okay then.

Stimuli - Our brains are smarter than we are

According to this blurb, and apparently this information comes from a video, our brain can effectively process only about 1% of all the stimuli that it takes in. Our brains have filters to filter out non-meaningful information.

My question is this: What would be different if we could effectively process all the information that we take in? Does this ability differ to any degree from one person to another? Does this ability change in the afterlife?

Starting simple, would we be able to avoid ever tripping again?
Would we be a lot better at sports?
Would we be able to perceive more colors?
Would we be able to communicate with each other a lot better?
Would we be able to understand animals and babies better?
Would we be able to see a lot farther?

Getting deeper, would we be able to see things that we previously simply could not see? Like ghosts?

I don't know.