As a young kid, when he was 17, he was brought into an underground base by the military, as the story goes, and he... They had a recovered alien craft. They couldn't get it to operate. He walked up to it, put his hands on it, and it activated right away, and it was activated by AI. And since then, he's been in touch with that AI.

From everything I can tell, David Adair was a guy who was pretty gifted with rocket design as a young man, and then he lost touch with reality and made up a fun story to tell people.