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 recently past U.S. government shutdown I came to

While this article by Randall Stross doesn’t mention exact correlations,

Over the last 2+ years, Wall Street analysts have pounded