SS,
Furhtermore, why would life all need to be exclusively carbon based. Why could it not be based on other elements as well, such as helium, or silicone?
I guess the reason it is "assumed" by "some" that all life is carbon based is because of the elemental structure of carbon that allow it to unite with other elements especially the two elements that make up water namely hydrogen and oxygen.
This 'assumption" that all life needs to be carbon based is if you ask me, is from those that have no "imagination" and like everything to be black and white.
I would like to speculate that our whole universe is a life form, and that every molecule, atom, elctron, quark and subatomic particle or wave is a life form,, but not as conscious as a worm or human.