so then couldn't you agree that if a collision, or combination, or even coexistence occured that possibly some receptor could exist as well to measure the level of collision/combo/coexist and then send the information gained from that measurement to the brain to paint a picture of what is going on around the entity if that entity could exist as well.
And to expand on those to lines I described algebraically... how about this one.
A curve y=x^2 restricted by the lines x=0 and x=5 would give you a graph of two vertical lines and a parabolla that collides at points (0,0) and (5,25).