>>And there's no need to stop it - it stops by itself in a few iterations more, when the pool of candidate participants is exhausted. Since the chain letters (or chain trading, if you ever saw that) relies entirely on its exponential growth, it ceases by itself very soon.
>
>Dragan,
>
>Basically, this is correct. However, I understand a few people will continue sending the chain letter years after it started.

Was it Einstein who said something like "universe may be finite or infinite, depending on which theory gets proven; human stupidity, however...".

I never understood how can people be so shortsighted - it takes simply a 'double the number of players in this round and add that to the total number of previous players', starting with one player, which any kid can do. Why is it so hard for people to do it twenty or thirty times, beats me.