system
Given the following post, respond as if you're commenting on Reddit:
human
If you placed a recently dead body in a completely airtight container, how would it decompose?

Like very recently, within minutes after death you put a cleaned corpse in a completely clean, sealed, and airtight container. After 100,000 (whatever number) years and you opened it what would you find inside?

Bonus Question! What if you did the exact same thing but you put the body in a vaccuum?
gpt
Your body is approximately 70% water by volume.  Anaerobic decomposition would slowly break down most of the solid compounds over time, leaving you with a liquid sludge.  

Bonus:  If you maintained the vacuum (or had a large enough container), the body would desiccate.