Can a quantum field exist without space-time?
The concept of space-time gets us into cosmology, that strange place where the science of physics, the abstraction of pure mathematics, and the human construct of philosophy meet in a big muddle.
Does space-time exist, or is it just a component of our model of the universe?
My take on the origin of the known universe is based on entropy and the laws of probability. Entropy specifies that the universe tends toward a state of lower organization, but allows for local exceptions. The simplest definition of life, for example, is a local reversal of entropy.
Well there's no reason those exceptions can't be temporal as well as spatial. If space-time (or whatever you call the place where the universe exists) is infinite, then the laws of probability say that it is not impossible for a state of organization to arise out of a state of complete disorganization (i.e., nothingness) by accident on extremely rare occasions. Particles and the corresponding antiparticles could suddenly appear out of sheer random chance. This would explain the Big Bang, and it could occur once in an infinite space-time continuum. Hell, it could occur more than once. Perhaps there have been other universes that were formed and eventually collapsed into nothingness. Or maybe there are six other universes in existence right now, but they are more than one googolplex light-years from here so we have no way to detect their presence.
Lastly although you are right that I have been taught religion and God- one has to wonder that people came to natural conclusion of God from all along.
That's no big mystery. Jung explains that belief in the supernatural is an
archetype, an instinctive belief preprogrammed into our synapses by our DNA. (To use language that is a little more modern than Jung's terminology.) Mitochondrial Eve and Y-Chromosome Adam were genetic bottlenecks in our species at two different times within the past couple of hundred thousand years: every one of us is descended from both of them. If either of them had a random mutation that caused them to believe in gods, it was passed down to us.
Of course many instincts are survival traits, like the urge to flee from a large animal with both eyes in front of its face: Those who didn't have it didn't live long enough to reproduce. It is too early to tell whether religion will prove to be a survival trait. At this point it doesn't look good, since the religionists are, once again, shooting each other and catching the rest of us in the crossfire.
Actually it doesn't solve any of questions, people just tend to stop asking the question once they come up with an answer of God.
Indeed. Religion doesn't answer all our questions. It just demands that we stop asking or risk being labeled heretics. My wife says that religions are always invented by men, because men can't stand to say, "I don't know."
If we're honest we can keep asking the same questions about God: Why does God exist, rather than not exist? Why is God eternal rather than limited? Why does God have the attributes that caused him to create the Universe and people? Why did God create the Universe with this particular set of properties? Why did God cause me, specifically, to exist? We can anthropomorphize and pretend to answer some of these questions (God loves, god desires, etc.) but they don't really get answered.
Heretic! Burn him at the stake!
At some point we have to be satisfied with the non-explanation that certain things just are without being able to attribute a cause to them.
Humans are curious by nature, like all primates. So we are NOT going to settle for such a bullshit answer to such an important question. My response to a philosophy that expects me to make peace with that pathetic statement and then tells me to be a good boy and go chop some wood, is one finger.
Now I understand that "Peace unto you" thing that grates like a particularly annoying parrot. Peace is all I'm gonna get from those guys, because I won't find any answers among them.