[AntonioLao]

These are links for a philosophy of quantum field theory:
http://en.wikipedia.org/wiki/Scientific_consensus,
http://users.ox.ac.uk/~mert0130/qft.html, http://www.worldscibooks.com/physics/5117.html,
http://links.jstor.org/sici?sici=0031-8248(199909)66%3CS170%3AOOETAO%3E2.0.CO%3B2-Q, http://www.cgoakley.demon.co.uk/qft/, http://www.stanford.edu/~mukul/tutorials/Quantum_Optics.pdf, http://www.geocities.com/saint7peter/DiracslectureonQFT.html, http://bjps.oxfordjournals.org/cgi/content/abstract/51/4/617.

[mkirkpatrick]

If I were to ask you Antonio,to construct a theory about whether you are alive or not,are you really here!can you prove to me beyond a shadow of a doubt,that you exist at all?You might well then reply,well open your eyes,look at me here I am!I am here on toequest!Well thats the point,you see Antonio,
there are it seems as many theories as there are grains of sand on all the beachesof the world,that how it appears,a slight exageration I know!When are we ever going to get undisputed facts,and not dam theories?The universe is real,we all live in it for Gods sake!We do not need proof of our
own existance do we!Just step over to the mirror and take a peek?You and I
are real are we not,we do not need a theory to tell us that.


kind regards michael.

[Guille]

There is a big problem with the developments in technology and some QFT. Imagine we develop giga-ultra-mega-super-computers (maybe from hadamard matrices?) which can reproduce n exact universe to this one. Every single atom in this universe is equal to every single atom in each of the virtual universes created. Imagine there is a minimum difference, for example, one atom is in a different place with each parallel virtual univrse. In that case, we would need billions and trilliosn and quinzillions of parallel univrses so that, onyl changin 1 atom in 1 moment in 1 different place, to cover all the possible permutatiosn of where the atom can be out of the whol universe. Imagine we do this for every single atom, and imagine further, that we can not only move 1 atom, but 2, to every permutation, and 3... and like that until we cover all the possible permutations of the atoms in the unvierse the numbr approaches infinity). Imagine we can not only move the atoms, but also elliminate them. We can take 1 atom off, and then we must make again all the possible permutations for that atom.

Well, we would end up with x number of virtual universes, practically not differentiable from each other, and all in giga-ultra-mega-super-computers. Also, notice that we can make equal universes many times, so that each of it's copies is in a different moment in time. The problem I present is that if humanity advanced so much as to create so many x universes, how do we know that our universe is one of those parallel virtual universes created in computers? We don't. And in fact, due to the absolute nothing of probability that there is that we are the 1 'real' universe (1/x which approaches -->1/infinity), therefore we must conclude that very probably, and nearly for sure, we are false, we are no more than electrons moving through circuits, or photons, or however the advanced computers work.

[AntonioLao]

Originally Posted by mkirkpatrick to construct a theory about whether you are alive or not

Subjective theory is constructible only in the mind. Objective theory is constructable using advance mathematics, maybe much more advanced mathematics.

we are no more than electrons moving through circuits, or photons, or however the advanced computers work.

An advanced quantum computer needs to tap into the energy source of the negative vacuum.