"Repeat a lie often enough, and it becomes the truth" is a quote often attributed to Nazi propaganda minister Joseph Goebbels. Ironically, there is no actual verifiable record that Goebbels ever said this.

Researchers tracked the specific quotation for three years online. It appears on more than 500,000 web pages and in 20 published books, always credited to Goebbels but never with any citation revealing the source. We live in a disinformation age. Today, we're looking at a handful of hearsay from the world of gambling — the little white lies that get repeated, respun, and rehashed.

Key Takeaways

01 — The James Bond Roulette Strategy: Live & Let Lie

Google the "James Bond Roulette Strategy" and you get about 3,050,000 results as of February 2026. Repeat the same search using any custom date range prior to March 2012, and you get no results. The JBRS was concocted by a gambling website content writer, on a deadline, in 2013, with copy to create. It's pure bunkum.

Yes, James Bond does hit the roulette table in Casino Royale, but his system is different from the JBRS. According to the school of Google, the JBRS has Bond spreading his bets across the board: 70% on 19–36, 25% on 13–18, and a single on zero. In Casino Royale, Bond simply bets the first two sets of a dozen numbers. He wins six times, loses on the seventh, and quits. Had he actually been playing the JBRS, zero would have been a great result. He would have been shaken and stirred.

And if you were looking for James Bond at the casino, you'd more likely find him at the baccarat table. That's his preferred game, featuring in both Casino Royale and Thunderball. Also, a game of total chance. No skill needed.

The verdict: The James Bond Roulette Strategy is a modern internet invention with no basis in Fleming's books or films.

02 — Labouchère: The Roulette Ruse

Henry Du Pré Labouchère was an extraordinary man: a politician, theatrical impresario, a libertarian, an advocate of animal rights, an agnostic, and a pro-gambling, anti-war campaigner. He is best known as the man who invented one of the most popular roulette systems in play today.

The fact is: Labouchère read about the system in a letter when he was stranded in Paris during the Franco-Prussian War. The system was actually created by the mathematician Marquis de Condorcet. Google "Condorcet roulette system" and you get fewer than 4,000 results. Labouchère is credited for a system he never created.

The verdict: The Labouchère system wasn't invented by Labouchère — it was created by Condorcet and later misattributed.

03 — Pedro Grendene Bartelle: The $3.5 Million Miscalculation

If you bet a dollar straight up on roulette, the most you can win is $35. The odds of hitting a single number are 35 to 1. It's that simple.

So why do scores of online gambling blogs talk about Pedro Grendene's magnificent $3.5 million roulette win, when he bet $35,000 on the number 32 at the Hotel Conrad in Uruguay in 2017? The reality is that the sandal manufacturing billionaire won $1.2 million. Still a huge win — but not $3.5 million. Never let the truth stand in the way of great content.

The verdict: Grendene Bartelle's win was real but wildly overstated — he won $1.2 million, not $3.5 million.

04 — Casino Oxygen: Pumping the Truth

There are still a few online sites preaching the betting myth that casinos pump fresh oxygen into the gaming floor to keep players pumping coins into the slots.

First: oxygen is not cheap. To pump thousands of cubic metres of pure oxygen into a typical Las Vegas casino would cost a small fortune. Secondly, consider the fire risk. Most Las Vegas casinos still have smoking areas. If you're pumping oxygen into the room, the potential fire risk could result in a lethal Las Vegas spectacular no one asked for.

The verdict: Casinos don't pump oxygen. It would be dangerously flammable and far too expensive to be practical.

05 — Roulette Systems Work: Spinning the Facts

Martingale, Paroli, Fibonacci, D'Alembert, Oscar's Grind... you can find thousands of websites proselytizing the merits of all these 'roulette beating' systems. The simple truth is: none of them really work. They are all just clever bankroll management strategies.

"Any 'best roulette betting system' is a red herring. What they are is bankroll management systems. At the end of the day, the house will still get exactly the same cut." — Paul Cullen
The verdict: No roulette system beats the house edge. The casino's fixed mathematical advantage cannot be altered.

06 — "Our Slots Are the Best": Bandit Behaviour

It's true, some slots have a much higher return to player (RTP) than other games. However, you find the exact same slots at most online casinos — and they all offer the identical RTP. The odds come with the game, not the online casino.

Nearly every online casino uses slots from global gaming software developers like Playtech, Microgaming, and NetEnt. The Mega Joker online slot from NetEnt has a very high RTP of 99%. That RTP will be exactly the same at every casino hosting the game.

The verdict: Slot RTP is fixed by the developer and identical at every casino. Differences come only from bonuses and offers.

07 — Sports Betting Is Superior: Want to Bet?

There is a popular misconception that sports betting is a more upmarket form of gambling, with more winning opportunities for the informed player. The misinformation stems from the fallacy that tight sports bettors are more likely to make money. In the long run, it's simply not true. Research shows that both sports bettors and casino players ultimately lose over time.

The verdict: Sports betting is not superior or more profitable than casino games. Both favour the house long-term.
What are the most common gambling myths?
That slots go 'hot' or 'cold,' roulette numbers are 'due,' max bets improve odds, and famous systems can beat the house.
Do casinos use tricks to make players lose more often?
No. Games already have a built-in house edge; regulated casinos can't secretly manipulate outcomes.
Do betting systems guarantee wins?
No. Systems manage bankrolls, not probability. The odds never change, no matter what formula you use.