FWIW, gene testing may never be able to predict the exact odds, since some of the diseases heavily depend on environmental factors (what you eat, how much you e

FWIW, gene testing may never be able to predict the exact odds, since some of the diseases heavily depend on environmental factors (what you eat, how much you exercise, how much you're exposed to carcinogens and sun, etc). In other words, the real distribution here is _posterior_, whereas the best 23andMe can do is somewhat accurately predict the _prior_. FWIW, my analysis from years ago seems to match the specific health issues my parents are now having in their late 60s. I haven't done the test for them, so it's not like 23andMe just cheated by randomly throwing in the answers from their health questionnaire. I now bring those up with my physician and optometrist and have them check for signs of disease. What baffles me is why they aren't doing it themselves. A full genome sequencing (!) costs just $1k. I pay more than that for health insurance every month.