Close your eyes.
Imagine a world in which one supercomputer can perform trillions of operations, thousands of times per second. A few of these supercomputers could provide enough computational power to accurately simulate the simultaneous movements of every single molecule in a cubic centimeter of air, in real time.
Now, imagine that a billion of those supercomputers can fit in a space no bigger than the point of a ballpoint pen. Wow. With a processor core no bigger than a wristwatch, one could perfectly model every possible movement of every single molecule in a cubic kilometer of air, in ten times real time; now, knowing the configuration of air molecules in this volume of air at any single point of reference—a task achievable with a progressive scan using the same gadget over an initial period of prep time—all possible futures of that volume of air could then be known. Add a few more processors, maybe doubling or tripling the gadget in overall size, and there would be enough computational power for the simulation to account for a subset of the most common likely variables - such as local weather phenomenon, basic solar and planetary conditions, air traffic and other human influences.
Next, imagine a large industrial warehouse full of these supercomputers. Impressive, right? With a few such warehouses, the entire atmosphere of our planet could be realistically simulated in better than real time - molecule by molecule, and with every possible variable considered.... forever.
Finally, imagine a city the size of New York built entirely out of these supercomputers.
Open your eyes.
Guess what? Those imaginary "supercomputers" are simple, consumer-level computer processors right now; the current private sector equivalent is several thousand orders of magnitude more efficient and powerful. Private—non-public—interests own thousands of cubic miles of these processor-cities - mostly buried underground. Next year, their net computational power will triple or quadruple at a minimum. Every year beyond, that power curve will continue to grow exponentially. That world you imagined above isn't today; it was yesterday.
Now, with your eyes open, ask yourself: how much less complicated is the sum of your past, present and future behaviors... than all possible futures contained in the comparative chaos of a handful of air? Don't fail to consider the many, many insights freely given, gathered and stored by Facebook, Google, your iPhone - about you. In our time, if a thing is possible, it has already been done.
You know the thing to which I'm referring, and it's been far beyond possible for a long time.
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