Maighstir: The "mark the images that resemble X" CAPTCHA can be both "I know that this is X, but I want to see if you know that it is X" and "I don't know that this is, so instead I'll have you teach me - is this X of not?", and the user shouldn't be aware of which question is being asked.

Propose that the language Svedsese use the single word baz for two concepts where the language Garninian has the separate words foo and bar. Given that the Garninian-developed CAPTCHA shows a mix of images, some of foo and some of bar and asks to select bar, Svedsese users would likely mark both kinds of pictures, while Garninian users probably would only mark images of bar. If Svedsese users are common enough, they may get the CAPTCHA software to learn that the images all show bar even if Garninian-speakers would say that some are not bar, because they are foo.

"bot" in my previous post refers to the CAPTCHA backend (I should have used a different word), not an automated user.

kohlrak: Well, i understood that you didn't infer a bot, but, rather, i'm implying that you're implying for the potential of it, since we're responding to the fact that sometimes you also have to click something that is not what is depicted.

Maighstir: Yeah. Sometimes it says "click bar", and the software ha learned that some images are bar when they really depict foo. Either because enough people don't understand (eg. marking signposts when it asks to mark signs), a large enough language using the same word for two concepts, or a large enough set of users (automated or not) purposefully misteaching the software.

With reCAPTCHA v3, it'll look at usage patterns before the request rather than ask questions at the time of request, and since bots rarely are as random as humans in their movements and usage, that'll supposedly work.

kohlrak: The problem with that is, predicting randomness requires predicting the source. In other words, depending on the randomness we're talking about, it might be possible for a bot to use some generic pseudo-random number generator, and it'll go undetected until it's revealed. Using a large pool of pre-generated prime numbers, that could easily get unwieldy for google.

Maighstir: I mean, if a bot started participating intelligently in conversations here, and giving actual reviews for games they bought, I wouldn't have much issue ranking them higher than some actual users.

Ganni1987: I'll gladly take the Steam login method over this: Sends a code to my email > copy and paste in browser > done.