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

…anyone can view rankings of the top eBirders in different

Sally Kohn’s recent prose in USA Today was right in

Coverage in Fast Company about an exciting new section at