How reCAPTCHA can at the same time teach computers how to read words, and know if the user is wrong?
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reCAPTCHA is supposedly able to teach computers how to read words, based on what the user manually suggest. But, reCAPTCHA sometimes tell the user he misspelled the word, which means that the computer already knows how to read the word.
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Answer:
Correct hypothesis, wrong assumption .reCaptcha never tells the user if the input is wrong. Its the Capthch you enter with reCaptcha that prevents wrong logins. I have myself tried giving wrong reCaptcha on sites and it got accepted. give it a try yourself and comment on this.
Vishwanath Pratap Singh at Quora Visit the source
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