Jake - I'll be honest, since I've moved here, I was surprised to learn that the medical system I now use has a large (and growing) Genetics Department. I was first contacted to learn basic ancestry information. Then my cardio doctor hooked me into a cardiac genetics counselor, Then my PCP referred me to the Neuro genetics group. I guess it's like bloodwork - there has to be a reason to order it individually vs just testing every possible gene for clues, and there is a specialist for each medical specialty. I will say that the Cardio genetics result offered a good clue about my Idiopathic heart issue, but I haven't had a sibling take the test to see if they might have a marker. (though my understanding is that the way genes split, siblings aren't expected to be identical). I am in unfamiliar territory with genetics but am confident that 20 years from now, they'll probably know a lot about a baby before they're born.