On a related note, I work with a guy from the Philippines. His parents know Efren. One day we got talking about pool (he doesn't play) and I asked him why he thinks there are so many strong players from such a small place. He said it was because they have a culture of gambling. He said most there are very poor buy everyone gambles. The example he gave me is when he used to play basketball there as a little kid. He said they would play for whatever small change they had...but never just for fun. He said when you're gambling, you tend to improve faster than playing for fun.