Interesting academic work on this recently. It shows that, as expected, the publication of a working investment strategy decreases its efficacy. http://news.mo

Interesting academic work on this recently. It shows that, as expected, the publication of a working investment strategy decreases its efficacy. http://news.morningstar.com/articlenet/article.aspx?id=648576 http://news.morningstar.com/articlenet/article.aspx?id=64857... Of course, contra your ML researcher, this presupposes that there are effective strategies that are published.