Oh, a Google believer. So tell me, how is a deaf-blind person going to solve an audio captcha? Is it OK for you to claim that a deaf-blind person ius not a human? I guess so, because google is the bomb, right?
And we dont even have to go down the deaf-blind road. I have excellent hearing, but have failed at solving audio captchas in the past. Also, please remember that there might also be a language barrier. Give an english audio captcha to a german housewive, and learn how discrimination works.