this post was submitted on 28 Oct 2024
381 points (99.2% liked)
xkcd
8773 readers
126 users here now
A community for a webcomic of romance, sarcasm, math, and language.
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
We've known that groundwater existed for verifiably more than 7,000 years (the age of the oldest well ever found). Springs and seeps are easily observable groundwater coming up out of the ground. I seriously doubt it was stumbled into by accident. We probably started by modifying springs for our use and then dug in other places to see if we could tap into the same source.