calypsolemon:

prostheticknowledge:

Humans Not Invited

Project from Do Something Good is an online CAPTHCA which claims that only machines can pass. There is an ongoing debate on the Programming subreddit trying to decipher how it works.

a CAPTCHA (Completely Automated Public Turing test to tell Computers and
Humans Apart) that filters out humans and only lets programs pass

Link

@masterofice