Heard of any such stories in the last 50 years? What games have a "possible" 50% edge to the player... roulette too? 100% edge to the player? Win every time? Don't you think the house would notice that?
They use hidden computers to calculate the rotation of the ball before placing the bets, those can potentially give you 100% edge. 100% edge doesn't mean winning every time, it just means the expected return on your bet is double. House will notice big winners so you can't be too obvious and by most laws such computers are illegal and you could potentially face jail time if caught. A pretty recent case in 2004 where a team got too greedy and won 1.3 million pounds in 2 days and got caught: https://www.theguardian.com/science/2004/mar/23/sciencenews.crime Of course there are still people doing stuff like this even now, but you don't hear of it. They keep a low profile.
Nah... Trading shouldn't be confused with gambling whatsoever, these are two different spheres, even though at first glance it may seem they have similarities. Casino is all about luring out money, while trading is more about calculations, analysis and other stuff. It's impossible to win in this casino, or chances are extra small. As for stock trading then if you know how to analyse the market, how to assess the company's performance, then you can easily become succeed.
Right - so you know which direction tomorrow the markets and individual stocks you are trading are heading? Very interesting. Even the next minute, do you know direction?
I never gamble in a casino knowing it’s a losing game but I lost plenty of money in the stock market knowing I may succeed some day.