Please review my comment here to consider whether it counts as "field testing": https://news.ycombinator.com/item?id=11339951 https://news.ycombinator.com/item?

Please review my comment here to consider whether it counts as "field testing": https://news.ycombinator.com/item?id=11339951 https://news.ycombinator.com/item?id=11339951