Life began by molecules adhering to rocks or minerals with catalytic surfaces, which stuck them close enough together long enough for them to react. Life can only have come from a particular kind of deep sea hydrothermal rent because that's the only place where you'd have the right chemistry. And i had to invent these membranes, because life is all about one. You get a membrane, youcan separate one thing from another thing, and then you can have some kind of a little gateway through the membrane that allows some things an through, but not others. Even if it's just like a sieve, even if it's better than nothing at concentrating somethings in what you get