A lot has been posted by Alrelax and Gizmotron about how they win using their years of experience, knowledge of the game, situational awareness etc.
Others like Xander and Mike have posted that you need an edge.
I am not here to debate the merits of Alrelax and Gizmotron’s methods, but I would like to explore Xander’s and Mikes position of having an EDGE.
What is an EDGE? Can you actually get an EDGE? To me an EDGE would be something mathematical, statistical or physical that would turn the odds or probability in your favor.
The above is a quote from the OP. Yes, you are absolutely correct about wins and losses. You can never be on all sides with an Edge. It is impossible, so--IMO, why attempt to do that. However, trying it leaves room to improve your knowledge of reality the game produces. Problem is, most of us are not in reality and refuse to see it.
It is also like someone saying, that restaurant specializes in seafood and is well known for having the best seafood in town. There is no way they could have a great Asian dish, it is impossible. But, maybe they really do? Maybe their sole Asian dish is horrible. Maybe is great on the days a certain chef is working and off on the other days when that chef is not present?
Same in baccarat. But there is no edge that can give you consistent wins on anything that will redundantly appear.
People attempt to convert computer statistics to live gaming and those statistics were not derived from the amount of hands that you will be playing in front of.
The real edges come from other avenues within the game of baccarat. I don't know about the game of roulette, perhaps so or not? But in baccarat the edges are not definable by mathematical numbers. Disclosure: IMO.
But there are edges.