This looks like the major contributor to the most recent SD profits - another martingale disaster:
I wish I could remember the quote I once read about martingale betting -- it was something like:
Martingale betting is a fun concept, but it doesn't work. In order to guarantee success, a Martingale bettor needs access to an infinite bankroll... and infinite balls. Unfortunately for the bettor, all bankrolls are finite but infinite balls is very, very possible.
I've scoured the internet, and I can't find any (relevant) quotes with "infinite balls" in it. So I guess I can claim credit for it

(though, the original version had a much better delivery)