Will Google Captcha themeselves out of buiness?

Several times over the past two days I have received a ‘captcha’ when I did a Google search. A captcha is a security measure that websites use to discourage fraudulent activities such as spam and automated queries.

I have already seen this tool about 10 times and I am starting to think I should switch search engines. If Google uses the captcha for very long look for their stock price to fall, fast as traffic drops to the site.