David Confer, a bicyclist and an audio technician, told his doctor he "used to be Ph.D. level" during a 2019 appointment in Washington, D.C. Confer, then 50, was speaking figuratively: He was experiencing brain fog — a symptom of his liver problems. But did his doctor take him seriously? Now, after his death, Confer's partner, Cate Cohen, doesn't think so.