Yes, edge is needed but it's only a part of it. You also need to properly utilize the edge, imho. You will have times when your "system" works better and times when it doesn't. How do you properly press it in good times? What do you do in draw downs or slow times? I think the big difference between automated and manual traders is that manual traders have the ability to spot rare moments of fleeting opportunity where they can put the pedal to the metal and achieve outsize returns with controlled risk. You can't really program automated system to do that. You can decide to allocate more or less money to it, but it's a manual decision(I'm not talking marginal auto-adjustments as per your money management rules).
Not disputing what you are saying. But edge is required above everything else 10x. No money management or mental disciple will help you beat Casino in roulette long term. They have the edge over you. Period.
