Many players believe that the visual animations they see on the screen are the game "deciding" the outcome in real-time. In reality, the process is instantaneous and occurs on the server before the animation even begins. When you click the spin or deal button, the game client sends a request to the server. The server then generates a result using a mathematical algorithm.
Once the result is determined, the server sends this data back to your device. The animation you see—the reels spinning, the cards flipping, or the ball rolling—is simply a visual representation of a result that has already been decided. Your balance is updated immediately upon the settlement of the round. Understanding this helps players realize that you cannot "influence" or "persuade" a machine through timing or patterns; the result is fixed the moment the bet is placed.