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

What apps are downloaded (or conversely not downloaded) tell us

The new iPhones went on sale today. Since the announcement,

For the last seven years, we’ve had a tradition on