Why does this feel so heartbreaking?

https://youtu.be/ZS4Bpr2BgnE

Sun Yuan and Peng Yu: Can’t Help Myself

YouTube
@RickiTarr ooof. the engineered futility of it all. ooooooof.
@RickiTarr @christ
I find this chilling. It’s like it’s desperately and futilely trying to clean up the blood of its creators after accidentally having massacred them (us) all.

@arcanenibbler @RickiTarr @christ I interpreted the robot as a metaphorical "machine" that cleans up bloodshed that it caused. So, it could relate to genocide or war.

Regardless of our individual interpretations, it certainly made us think.