To the naked eye, a slot machine looks like a series of spinning reels that stop randomly. In reality, the outcome of your spin is decided the very millisecond you press the spin button. The spinning reels you see on your screen are simply an animated presentation designed to build excitement; they do not influence the result.
This process is managed by a Random Number Generator (RNG). The RNG is a complex mathematical algorithm that generates thousands of numbers per second, even when no one is playing. When you click "spin," the game picks the current number from the RNG and maps it to a specific symbol combination on the reels. Because the RNG is completely random, every single spin is an independent event. This means that what happened on the previous spin—whether it was a big win or a long dry spell—has absolutely no impact on the result of the next spin.