> The puzzles are just badly done, it's not even a vision or knowledge thing.
Yeah. The puzzles are terrible now, and I have a strong suspicion that they're no longer testing to see if you behave like another human, but instead testing you to see if you act like their own machine vision bot.
I've lived my whole life in the US and have about 20/20 vision (used to be slightly better than 20/15), and I'd estimate my reCaptcha pass rate around 20%.
The puzzles are just badly done, it's not even a vision or knowledge thing.