> And 10% returns is rather optimistic, though the number I've seen most often in these kinds of calculations is 6-7%, so it's not that far off. When we talk a

> And 10% returns is rather optimistic, though the number I've seen most often in these kinds of calculations is 6-7%, so it's not that far off. When we talk about compound interest it is way off. Also sustained growth of that magnitude - especially if we want it above inflation is very hard and has occurred in very rare circumstances.