https://www.explainxkcd.com/wiki/index.php/2228:_Machine_Learning_Captcha https://www.explainxkcd.com/wiki/index.php/2228:_Machine_Lea... click on all the photo

https://www.explainxkcd.com/wiki/index.php/2228:_Machine_Learning_Captcha https://www.explainxkcd.com/wiki/index.php/2228:_Machine_Lea... click on all the photos that show places you would run for shelter during a robot uprising