If Google has a way to verify correctness of an answer, which they seemingly would have to - then would it matter? Smart person or smart bot - if they are given a tough question and answer correctly Google gains confidence in the answer _(or however it works haha)_.
Because really i don't think Google cares at all about bots. They just want data. And the captcha system is an impressive system to pull training data out of intelligent beings/code.
If Google has a way to verify correctness of an answer, which they seemingly would have to - then would it matter? Smart person or smart bot - if they are given a tough question and answer correctly Google gains confidence in the answer _(or however it works haha)_.
Because really i don't think Google cares at all about bots. They just want data. And the captcha system is an impressive system to pull training data out of intelligent beings/code.