There are many ways of dividing traders into two groups.

Here's one them: the group of those whose instinctive grasp of maths, statistics and probability is such that they understand that there's no logic at all behind allowing the stake for a bet to be determined by the outcome of the previous bet, and the group of those who don't.

The first group has no interest in Martingales, anti-Martingales and other staking progressions; they simply want to develop their edge and then apply it to the market safely as often as possible.

The second group lives in a dream-world in which they imagine that a system without an edge can somehow be made profitable and/or safe by changing the position-size of a bet according to the previous bet's outcome, and some of them can be seen on the web posting the same sort of nonsense over and over again in trading forums, for years or even decades; unless radically re-educated, they will never make a living through trading.

"Discuss".

Here's one them: the group of those whose instinctive grasp of maths, statistics and probability is such that they understand that there's no logic at all behind allowing the stake for a bet to be determined by the outcome of the previous bet, and the group of those who don't.

The first group has no interest in Martingales, anti-Martingales and other staking progressions; they simply want to develop their edge and then apply it to the market safely as often as possible.

The second group lives in a dream-world in which they imagine that a system without an edge can somehow be made profitable and/or safe by changing the position-size of a bet according to the previous bet's outcome, and some of them can be seen on the web posting the same sort of nonsense over and over again in trading forums, for years or even decades; unless radically re-educated, they will never make a living through trading.

"Discuss".