These are good thoughts. I think they are mostly applicable to people who have some experience though. Investing in a market that can be essentially the same as gambling day to day for newbies who might just pull out if they see it decrease in value overnight means that until they're "ready", they should invest only what they can afford to lose. They're gonna make mistakes - even the pros do. But, for someone a bit more confident and understanding of the system, I hands down agree with you.