a ponzi scheme DOES NOT allow it's participants from any other level than the TOP TIER ...to withdraw all/any investments at ANY desired time !!!
Here nobody forces you to ponzi with us
you don't like it ? get cold feet ? cash out and never come back...easy as that...while ponzi works more like : you want back you moneis 
well first you have to double down your investment, persuade your parents or friends to join ...and than you get 80% of your initial investment ...paid as "dividends" .... while the rest can not be withdrawn yet since it's invested in a "termed deposit or stock" (words of the ponzi master to his mugu) .... )))
Here nobody forces you to ponzi with us
you don't like it ? get cold feet ? cash out and never come back...easy as that...while ponzi works more like : you want back you moneis well first you have to double down your investment, persuade your parents or friends to join ...and than you get 80% of your initial investment ...paid as "dividends" .... while the rest can not be withdrawn yet since it's invested in a "termed deposit or stock" (words of the ponzi master to his mugu) .... )))