From his post in Biologos
I worked in the oil industry and when I was 29 was in charge of recruiting and training geophysicists for Atlantic Richfield, which at the time employed 50,000 people, probably 1000 geophysicists. I hired geophysicists from Christian Heritage College, Henry Morris’ college. After a few years, they either left the industry because they couldn’t justify what they saw with what Henry taught, or they gave up the young earth. We didn’t indoctrinate them, it was the data that did it. And at the time, I was still a YEC myself. But by the mid 1980s, I threw in the towel.
The geologic data simply doesn’t support a young earth.