It came as a surprise to me when Emory law professor Matt Lawrence mentioned it on a discussion list, but D.C. Circuit Judge Douglas Ginsburg had an interesting background as noted in his biography:
Judge Ginsburg took a break from college in the mid-1960s and established a nationwide computer-dating service called Operation Match. The company facilitated blind dates for a fee using computerized data collected from questionnaires….
This service was reportedly the first computerized dating service in the U.S.
The article Judge Ginsburg (Author of the TikTok Divestiture Opinion) and His Own Foray into Social Technology was originally published on Reason.com.