system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do we know that plants don't feel pain when we eat them?
gpt
They don't have nerves or a brain wich are responsible for our pain.

They do have chemical stress reactions. But they don't really have the organ thats required to "experience things".

Thats no evidence but more a "we wouldn't know how they should feel pain"