Accessibility tier

Where a prognosis sits on one spectrum from broadly comprehensible to technical, so the list can be ordered for a general reader.

Rated from the prognosis text alone. The three bands are broad and popular, applied and translational, and technical and scientific. A separate market topic says what the question settles: a lab result, a first patient, a trial endpoint, a regulator's decision, a company's money, a cultural moment, or the big milestone of longevity escape velocity.