[qwaxys]

Sustainability.

Back then there was a bit more time before we screwed over humanity.

(The planet will be fine long after we've made ourselves extinct)

[Covalent]

Me: "Okay guys so make sure to not become too reliant on plastic, oil, or really any petroleum based product once you learn how to drill for it."

Roman guy: "ποσόν;"

Me: "..."