Except for limits (be it imposed by the casino or your bank account), it's a no-loss situation, even with slightly less than half winning chance (eg due to 0).

Except for limits (be it imposed by the casino or your bank account), it's a no-loss situation, even with slightly less than half winning chance (eg due to 0). Every time you lose, you make up by increasing the potential earning: $1 lost, $2 lost ($-3 total), $4 lost ($-7 total), $8 won ($1 total) The only problem is that these theoretical limits are really limiting in practice ;-) In case of the GPs buddies, if they started at $15, playing at ~$60k means that they lost 12 times in a row, and if they finally won that round, they still only gained $15.