1.I think that the two things having the conversation are aliens.
2.I think that the things made out of meat are humans.
3.I think that two aliens are having the conversation because,they are talking about the brain and they are trying to figure out what the way these "meat things" live.And they,the aliens are referring to our skin and insides as meat.
Haha Nice choices. I bet your right. It must be aliens... :-D :-P
Thats good thinking
Same thing i did.