As a computational biologist I have gained sufficient expertise in both computation and biology to know that most of the magic AI biomed stuff proposed by people who have expertise in only one of these areas is utter nonsense.

Two PhDs that don't speak the same language isn't a great solution, but one PhD who is a jack-of-both-trades isn't the only alternative either. I feel like I've done well with alternating collaborations with biologists who don't have a computational focus, and quantitative methods folks who don't necessarily have a focus in genomics (what we work on).