If you look at the person's bio on their website, they have a phd and have written multiple books on the topic, plus have been an invited speaker and regular at

If you look at the person's bio on their website, they have a phd and have written multiple books on the topic, plus have been an invited speaker and regular at conferences in the area. They went to work at a company doing the same specialization, then went out on their own. This is about how to cash in on being a well-known contributor in a very hot niche area. Given all that, I feel like they are still just selling their skills for short term cash while others make the real money off what they produce. As always with contracting.