Maybe the toothpaste is like a box of 3-type ice cream...or 2-type in this case...like the left half is white and the right half is blue...when you squeeze it I think it should come out like it does.....maybe, dunno...
Just thought of something a little bizzare...kinda cool actually. You know how when you look up at the stars, you're actually looking into the past, because it takes a couple of thousand years for the light to reach the earth. So if you see a star exploding, you're actually seeing an event that happened a couple of thousand years ago or more or whatever.
So what if some alien is looking at us from way back there...that means they're looking into the past as well. So we're living in the past relevant to distant objects. Cool huh?