Life will not exist forever. Nothing will.

The post is dead-on, but here I think you overreached yourself! If nothing will exist forever, that means the laws of thermodynamics won't exist forever, which means life might get a chance after all :P

But really, we are fledglings, we evolved consciousness only recently and science even more recently. Who knows what our brains and science will enable us to do in the future, even beat entropy, as impossible as that sounds.