You may be thinking of the Kardashev scale: https://en.wikipedia.org/wiki/Kardas... | Hacker News

Hacker News new | past | comments | ask | show | jobs | submit

login

philwelch on Nov 26, 2017 | parent | context | favorite | on: Can anyone make money on the moon?

You may be thinking of the Kardashev scale: https://en.wikipedia.org/wiki/Kardashev_scale

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact