Obviously, there are many many more consideration in trading than simply betting Red/Black. But in its simplest form, stock prices either go up, or down. Does this make the chance of blindly picking a winning stock the same odds as flipping a coin? Or, am I missing something. Short term/Long term? If that were the case, then blindly choosing shorts and longs could be profitable with proper money management and diversification. Correct? If so, then having even a little edge like looking at even the simplest technical or fundamental analysis should definitely make a trader profitable. Yet, so many loose. What is missing that voids the 50%/50% theory, Red or Black, Coin Toss? Thoughts?