in ponzi is the same, you wait someone after you who put the money
not at all

and how you get piaid then?
they pay you with the money of the one that come after you and so on, if this isn't ponzi, then i've just discovered a new scam method lmao
a ponzi is when someone pays you what you think is a high interest rate on your deposit, from them successfully investing etc, when they are really paying you that interest out of your own or other investors deposits. you're not yourself waiting for other suckers to pay you're interest (profits) cause you are unawares whats going on.
most people mislabel pyramid schemes and similar as ponzi's.
Yes, good definition.
Most Ponzi schemes actually start out with a genuine intention, but either the investment does not give the expected returns (and desperation sets in), or the amount of money subscribed is so large that the temptation to embezzle is too great to resist.
Pyramids are usually set up that way from the start.