AI now makes early disease detection possible at scale, and catching disease early is always cheaper than treating it late. Detection names like Grail, Guardant, RadNet and Lunit win on distribution and reimbursement; grading names like Tempus, Veracyte, GE HealthCare and HeartFlow build data moats near treatment decisions. Monitoring via Natera, Personalis and iRhythm is the most asymmetric layer, a recurring subscription. NVIDIA gets paid whichever test wins. x.com
