Found another podcast with Ziemba. It's a very similar style of podcast, and he covers some of the same stuff. However, most interesting bit is that he mentions a horse betting syndicate that was wagering
$1.2 billion per year and making 15%. That's a cool $180 million/year. From context sounds like they did this in ~2010 with 80 employees. Says they now have ~300 people. He mentions it @ 13:35. Pretty sure he later confirms that this is Zeljko (sp?).
Link:
F'ing crazy...