What do you mean by the meaning of life is that 'life is possible'?
that's what it means. like for example, you may be sitting around wondering if life is possible (you know, things moving about on their own, and such) and you're really not sure whether it's possible, and then *pow* you see some life (you know, some things moving about on their own, and such) and you may think to yourself, "what does this mean?" well it means life is possible, that's what the damn it means