That is false and even if it were true the conditions are unrealistic, so people better forget about Martingale, but no matter how many times that has been explained in this forum by several of us, and in a lot of places on the web, people misinterpret what they want and keep trying the strategy.

What were you going to do with unlimited money and no bet limits? Double the bet to win only the initial amount until you lose it all and start all over again?

The Martingale should be called the Rubbishgala.