The Big Bang and Absolute Zero

I was wondering... I find it hard to believe that all matter in the universe was compressed into a little dot that exploded. That is, until I thought of something else. Absolute zero is an unreachable temperature because of, by laws of pressure, the volume of the gas itself would reach zero which is impossible because matter cannot be destroyed or simply 'disappear'. That part was hard for me to take in because I thought "can't the atoms stop moving and just be touching each other without vanishing into nothing?" That, unfortunately, was answered by a 'no'. He said that people have tried, and still do, to reach that temperature of no movement, and can get close, but never actually reach it.Now, taking in my thought that I haven't thrown away because of utter defiance, if all the matter was compressed at absolute zero, that would allow it to be held in such a dot AND give reason for the giant explosion (all that pressure instantly released).Any thoughts on this? Anything like "your entirely wrong, quit now" or "maybe... just maybe"?

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