So Professor Jennings was right after all:
Larry: Okay. That means that our whole solar system could be, like one tiny atom in the fingernail of some other giant being......This is too much! That means one tiny atom in my fingernail could be—
Jennings: Could be one little tiny universe.
Larry: Could I buy some pot from you.
Each person is a universe tho not a closed one...look at how many life forms make up our bodies...without them, we could not exist..