When we looked at Quantum Mechanics, we talked about its various interpretations. The reason we have such interpretations, I said, is that QM deals with a reality that we have no access to, through our sensory and perceptual apparatuses. On the other hand, Special Relativity is about macro objects in motion, and we have no problem imagining such things. So why would we need to have an interpretation? The answer is a subtle one.
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Category Archives: Philosophy
Philosophy is never too far from physics. It is in their overlap that I expect breakthroughs.
Quantum Mechanics – Interpretations
Whenever we talk about Quantum Mechanics, one of the first questions would be, “What about the cat?” This question, really, is about the interpretations of Quantum Mechanics. The standard interpretation, the so-called Copenhagen interpretation, leads to the famous Schrodinger’s cat.
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Quantum Field Theory
In this post on Quantum Mechanics (QM), we will go a bit beyond it and touch upon Quantum Field Theory – the way it is used in particle physics. In the last couple of posts, I outlined a philosophical introduction to QM, as well as its historical origin – how it came about as an ad-hoc explanation of the blackbody radiation, and a brilliant description of the photoelectric effect.
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Quantum Mechanics
Quantum Mechanics (QM) is the physics of small things. How do they behave and how do they interact with each other? Conspicuously absent from this framework of QM is why. Why small things do what they do is a question QM leaves alone. And, if you are to make any headway into this subject, your best bet is to curb your urge to ask why. Nature is what she is. Our job is to understand the rules by which she plays the game of reality, and do our best to make use of those rules to our advantage in experiments and technologies. Ours is not to reason why. Really.
Reductionism
In all our scientific endeavors, we use similar high-level techniques to understand and study things. The most common technique is reductionism. It is based on the belief that the behavior, properties and structure of large and complex objects can be understood in terms of their simpler constituents. In other words, we try to understand the whole (the universe, for instance) in terms of smaller, reduced constituents (such as particles).
Sensory and Physical Worlds
Animals have different sensory capabilities compared to us humans. Cats, for instance, can hear up to 60kHz, while the highest note we have ever heard was about 20kHz. Apparently, we could hear that high a note only in our childhood. So, if we are trying to pull a fast one on a cat with the best hifi multi-channel, Dolby-whatever recording of a mouse, we will fail pathetically. It won’t be fooled because it lives in a different sensory world, while sharing the same physical world as ours. There is a humongous difference between the sensory and physical worlds.
Problem of Free Will
Free will is a problem. If all of us are physical machines, obeying laws of physics, then all our movements and mental states are caused by events that took place earlier. What is caused is fully determined by the cause. So whatever we do now and in the next minute is all pre-ordained by antecedent events and causes, and we have no control over it. How can we then have free will? The fact that I am writing this note on free will — is it totally and completely determined by the events from time immemorial? That doesn’t sound right.
Data to Wisdom
When it comes to the amount of intelligence and experience required, we have a clear hierarchy from data to information to knowledge to wisdom. What we get from raw observation are just data points. We apply some techniques of aggregation, reporting charting etc. to arrive at information. Further higher level processing in revealing interconnections and relationships will give us condensed and actionable information, which we can consider knowledge. But to arrive at wisdom, we need a keen mind and years of experience, because what we mean by wisdom itself is far from obvious. Rather, it is obvious, but not easily described, and so not easily delegated to a computer. At least, so I thought. How could machines bridge the gap from data to wisdom?
Bhagavad Gita
Among the religious texts of Hinduism, the Bhagavad Gita is the most revered one. Literally presented as the word of God, the Bhagavad Gita enjoys a stature similar to the Bible or the Koran. Like all scriptures, the Bhagavad Gita also can be read, not merely as an act of devotion, but as a philosophical discourse as well. It presents a philosophical stance in understanding the world, which forms (for those from India) the basic and fundamental assumptions in dealing with life, and the unknowable reality around them. In fact, it is more than just assumptions and hypotheses; it is the basis of commonsense handed down from generation to generation. It is the foundations of intellect, which form the instinctive and emotional understanding of reality that is assimilated before logic and cannot be touched or analyzed with rationality. They are the mythos that trump logos every time.
Word of God
Scriptures are considered the word of God. If you are atheist like me, you know that all words come from men. Gods have no words. This raises an interesting question about the men who wrote down these words. Why did they imply (or flat-out say) that they were uttering God’s words?