Even with the many successes of Quantum Field Theory, there are five unexplained enigmas or “gaps” that may perhaps someday be filled:
Renormalization is important since Quantum Field Theory does not explain exactly how an electron (or various other charged quantum) is impacted by its own self-generated EM field.
Field Collapse is actually of two varieties: spatial collapse, anytime a spread-out quantum suddenly is suddenly sucked in or possibly becomes localized, and also internal collapse, when the spin or other interior feature of a quantum instantly changes. Collapse can likewise happen by having two or maybe even more entangled quanta. Quantum Field Theory does not illustrate the way in which and when this takes place, despite the fact that it can calculate probabilities.
Whys and Wherefores. Quantum Field Theory does not offer an explanation for why the masses and interaction strengths regarding the various fields are what they are.
Dark Matter and Dark Energy are generally thought to exist in deep space thanks to astronomical proof. They similarly are not explained by the recognized areas of Quantum Field Theory.
Consciousness is undoubtedly something that transpires behind our noses, nevertheless is not explained by Quantum Field Theory.
… How dare physicists talk about “theories of everything" when they can’t explain what goes on behind their very noses! But please know, by consciousness I don’t mean simple information processing, such as might be accomplished with the assistance of the computer. I mean the spirit consisting of awareness, the sensations, the feelings that human minds encounter on a daily basis— originating from the color red to the charm attributed to a Mozart sonata or perhaps the discomfort of a toothache. These sorts of sensations are called qualia. Most physicists really don’t wish to be inconvenienced by the question, and it it is left to theorists such as Charlie Chaplin to worry about it: "Billions of years it’s taken to evolve human consciousness … The miracle of all existence … More important than anything in the whole universe. What can the stars do? Nothing but sit on their axis! And the sun, shooting flames 280,000 miles high. What? Wasting all its natural resources. Can the sun think? Is it conscious?”— C. Chaplin (film “Limelight”).
I see consciousness as a much more critical issue than the concern concerning exactly why the field constants contain the values they do, and I would definitely trade a hundred field collapses in order to get an explanation of precisely why people see colors. Among those physicists who are inclined to consider the challenge, several think that consciousness arises from the complexness of human brain— that our brains is nothing more than a remarkably complex computer or even robot could do. (A physicist has been defined as “the atom’s way of thinking about atoms.”) This is referred to as the Artificial Intelligence (AI) explanation. Nonetheless presently there are a few physicists who are convinced that the marvel of consciousness transcends our current knowledge: “”Of all the areas of experience that we try to link to the principles of physics by arrows of explanation, it is consciousness that presents us with the greatest difficulty. We know about our own personal conscious emotions directly, without needing the intervention of the senses, so precisely how will consciousness ever be brought into the ambit of physics and chemistry? The physicist Brian Pippard … has put it thus: “What is surely impossible is that a theoretical physicist, given unlimited computing power, should deduce from the laws of physics that a certain complex structure is aware of its own existence.” I have to confess that I find this issue terribly difficult.”“— S. Weinberg.
To me it is perfectly obvious that consciousness consists of more than electric or electro-chemical signals, as in a computer or robot. If I took the most skilled carpenters in the world, gave them an unlimited supply of wood and said, “Take this wood and make a television set, but don’t use anything except wood”, I know they couldn’t do it. We can’t even define these sensations, much less know how to create them from computer parts.
Some scientists justify their belief in the AI explanation by asking “What else? Why is this so difficult to believe in regard to consciousness?
Will we ever find an explanation?