Are CAPTCHAs Getting More Difficult?

CAPTCHAs are a challenge-response test used to help decipher human responses from that of a computer in order to prevent automated software from performing actions which degrade the quality of service.  Recently I’ve noticed that CAPTCHAs are getting increasingly difficult.  Is this a sign of tech evolving faster than the human mind?

Related

With the 2014 CES officially behind me, I can finally

Visa unveiled a $100 million venture fund dedicated to generative

A look at how some companies are leveraging crowdsourcing for