One of the reasons that big data is so useful in making decisions is that the basic facts about the world are hidden from us. Some of it's just lying. I have a big section on who's secretly rich in the united stateso and you know, that's complicated because so many people are playing p down their wealth in life. And i think there's also point that the probability of success increases until the age of 60. Re it is pretty shocking ot to me. Just nobody thinks of a 60 year old ante pener.