discussed here - https://news.ycombinator.com/item?id=37296122 https://news.ycombinator.com/item?id=37296122 I found this comment useful: - https://news.ycombi

discussed here - https://news.ycombinator.com/item?id=37296122 https://news.ycombinator.com/item?id=37296122 I found this comment useful: - https://news.ycombinator.com/item?id=37297963 https://news.ycombinator.com/item?id=37297963 Several comments noted that a 4 month improvement in life expectancy (for sigmoidoscopy) over the whole population is actually pretty good for a low-incidence cancer. That's several years for the people who actually get it. But the comments seem naive about the downsides of broad screening: over-treatment, iatrogenic disease, false positives, opportunity cost, etc.