There's a long of study on the subject (that I've only surveyed). See my comment https://news.ycombinator.com/item?id=39792884 https://news.ycombinator.com/item

There's a long of study on the subject (that I've only surveyed). See my comment https://news.ycombinator.com/item?id=39792884 https://news.ycombinator.com/item?id=39792884