I remember clearly the philosophical debates we used to have in college. One hot topic was about free will and fate. The argument for fate was that since every particle is governed by the laws of physics, its behavior is pre-determined and predictable. The laws of physics can be expressed neatly in mathematical equations, and hence the future of any given particle can be computed for any time in the future. Since we are nothing more than a collection of particles there was no role for free-will. Everything is pre-determined and the universe operated like a machine.
The first chink in the argument for a pre-determined destiny was that the laws of physics are not in fact deterministic in nature. These laws are expressed in terms of probabilities, which means that the future state of any given particle cannot be computed with any degree of certainty. Though the laws of physics provide a fair degree of certainty in determining the future state of a large aggregation of particles, it still provides enough wiggle room to make the notion of a universe that works like a giant machine untenable.
The second chink was that the phenomenon of consciousness is not well understood by science and cannot be condensed into a neat mathematical equation. Biology considers consciousness as some kind of an “emergent behavior” of the brain. It is almost as if consciousness is some sort of un-interesting side-effect of the brain that is best ignored. But on the other hand, physics needs consciousness at a much more fundamental level. The equations of physics do not “resolve” until a conscious observer is injected into the mix. This tantalizing role of consciousness at such a fundamental level opens the door for free-will as consciousness seems to be much more than a biological after-effect.
Even after debating long and hard, neither side was able to close the deal, and our arguments remained unresolved. Personally, I leaned towards the free-will team. I believed deep in my core that my destiny was in my hand and that the choices I made would determine how things would turn out for me. Continue reading



