The green screen amounts (as you can see they will profit on all outcomes) require a significant betting bank and a considerable degree of risk in order for you to profit to the tune of £450. Of course, if you were told at the website that you'd need a few grand in order to realize these profits, OR that you would have to risk a large sum of money in the hope that you have read the market well, then they wouldn't sell many of their £47 eBooks. Why? Because it shatters the illusion they are trying to create that all of this will magically come to you risk free for £47.