I do believe that ponzi schemes are scam. Someone told me about that $363 was scammed to him, according to him it is just good at start but when the time come that he wasn't able to recruit or refer on the company, it's stop from paying. So if you are planning to invest make sure that it won't fall to be wasted.
If the interest is higher than 20% a year, it is most probably a Ponzi scheme. Do not invest in such scheme.
you are righ about the 20% a year...
But it depends on the system.
If someone promises you 20% a year...or even 20% a year it is certainly a scam...
But my investment system for free...yes for free...gives you nowadays 140% profit in 12 hours...
I say NOWADAYS...
you invest for free shares worth 800 satoshi or so...
and 12 hours later you sell your shares and you get 800 satoshi and shares worth 1200 satoshi.
Yes what you read is true.
But people prefer re-invest and sell later and make dividends...or prefer chose other options among the 5 options possible.
You see that it is possible to make 140% profit in 12 hours...
It is even possible to make more...but we do not know for how long.
And it is not a scam...the system is realistic and what you see on your account is yours...
So...please do not say that over 20% a year it is scam.
My system can give more than 20 % a year and it is not a scam.
And it is not because I promise nothing that you get nothing...(lol)
Now you know that it is possible to get over 20% a year...even 140% in 12 hours...AND FOR FREE.