earn huge amount with small amount isn't impossible, looks like you had luck on your side you should thanks for that tho a chance never coming every day.
It is possible, though it might take some time before you could win this big, and you are right, I guess this man is just lucky when it comes to gamble, that is why it is too easy for him to say that there's a lot of ways on how we are going to grow our money, which is true, but if I'm correct, he is pertaining gambling when he said that, since he is making a lot of money in gambling, which is 1.5 btc, well, if this is really true, then I presume that you are a rich person.
Or it may not come ever at all. There are lots of gamblers that have not a chance to win huge in their life. As the definition said it, it is a chance which can never come to a person when he is gambling. So I guess earning a good amount with 0.01 BTC in gambling is all about being one in the million people who get the chance to predict the right outcome of the game.