The markets are not a gamble, I view it, them, from a stance of observation to determine zones of trading risk which is favourable in terms of return relative to that risk over the next n periods of time or direction of price based on the (emotional) actions/activity of market participants which will effect price.
Takes time and humans being humans I make mistakes now and then.....
you can observe this,measure it,monitor it, its not a guess is it? I suppose theres a "gamble" as in sudden news may impact at any second an unknown outcome...
Isnt there a term called "maximal theory" meaning using everything that can be known to predict outcomes as opposed to "complete theory" knowing everything to predict outcomes.
I'd say that "Trading" will always be " Maximal Theory Of Trading"
great title for a book........ maybe.