I'm not saying it's necessary, I'm just saying the previous poster can't seriously expect that the 84% (86%?) number will decrease much from everyone investing if that percentage's owners are able to always outperform - even if the top 10% (or even 1%) only have a 2% advantage because of better or earlier access it's just going to compound non-linearly compared to everyone else's returns over time. And it being non-linear means for that 80-something% number to go down the $100/month folks have to continually increase in population at a rate greater than the difference between their rate of return and the rate of return of the top 10% or top 1%.