Did the Big Bang use all the Energy in the Universe? (I ramble a bit here, sorry...)?

Question

Well, I'm always told that 'Energy is never created or destroyed, only transformed from one form to another'. Does this mean that ALL the energy in the universe (from the heat energy of a supernova to the kinetic energy of electrons) was transformed in the Big Bang?

Also, I have another question relating to this:-
Energy is physically nothing, just a capacity to work. Therefore:
Could the Big Bang not just have been a lot of dormant energy becoming mass (by the principle of E=mc^2)? Since the Big Bang (like all actions/events) was a transformation of Energy, and mass is a form of energy. It explains the stumbling block of 'something from nothing', doesn't it?
The super-dense mass (Which I think the quark-gluon plasma that the LHC is looking for) couldn't support all this energy, so it dispersed into matter and dark-matter (since the regular matter couldn't handle all the energy).

One last Question:
If E=mc^2 holds true for nuclear fission and some mass becomes pure energy in the process, does that mean the End of the Universe will be the largest nuclear explosion ever possible? Because all the mass is going to disperse into nothing (and Energy, as I said, is physically nothing)

By the way: I am aware that the more educated in this field may think of my reasoning as entry level troll, but I'm always willing to learn new things and the way I do that best is by coming up with hypotheses and seeing if they are correct by trying to prove them wrong...
So please don't be too harsh.

Thank you for your help

Morningfox · Accepted Answer

The Big Bang (BB) _was_ all the energy in the universe.

Energy can be transformed into mass, and mass into energy.  That's how atomic bombs work.

Quantum mechanics explains how the universe can get something from nothing.  Mass/energy can be created from nothing, as long as it is a small amount and goes back to nothing soon enough.  Apparently, the mass/energy of the universe is a "small" amount, and a few billion billion years is "short" time.  After all, what do we have to compare it to?

The end of the universe is when the mass/energy is spread out so thin it practically disappears from existence.  That will balance the quantum mechanics of the BB, and end the "short" time.

Court · Answer

Before the big bang, initial singularity, where energy density and temperature become infinite and the fundamental laws of physics fail to explain the phenomena, every thing was tightly compacted. Something sparked the expansion and the energy spread until it was cool enough to form atoms then eventually stars, planets, galaxies, etc... Dark matter collected the forming matter as it formed galaxies, etc.. Energy definitely was transformed by the Big Bang. It was too hot for electrons to collect with atomic nuclei. Energy was energy, not yet matter. 

The Big Bang was not a transformation of energy to matter but a cause a change in the density of the universe. Energy isn't physically nothing. Light is physical, we can't really touch it but we see the effects of it and feel its radiance on our skin. 

Not all mass is converted to an explosion. Some mass is lost to temperature fluctuation, vibration and sound, no sound in space though since it is a vacuum. Mass would not become nothing, since energy is not nothing, but a big something. 

The Big Bang did not use all the energy in the universe.

Anonymous · Answer

The total energy content of the universe is believed to be zero --that all the mass, radiation, kinetic ,gravitational and dark energies add to zero.And to some extent , we can understand such a situation -- its rather like a perfect spring or pendulum constantly exchanging kinetic and potential energy. 
The problem is, how to set the whole mechanism going in the first place--where did the "force" or "energy" for this eternally balanced system come from.And for this two possible answers have been proposed :

In the first , we simply accept the quantum fluctuation idea --that out of "nothing", a plus something and a negative something can spring into existence and that they somehow survived long enough to trigger our zero energy universe, before   annihilating themselves.
In the second , a small amount of matter, from whatever came before the Big Bang, acted as the seed energy for our universe .

Anonymous · Answer

where did the big bang come from?


there is no answer to that

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Did the Big Bang use all the Energy in the Universe? (I ramble a bit here, sorry...)?

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