I don't really get Big Bang

Can someone explain...

The First Law of Thermodynamics dictates that Energy can be changed from one form to another, but it cannot be created or destroyed. The total amount of energy and matter in the Universe remains constant, merely changing from one form to another.
Some is positive, some is negative. The sum is zero.
 
The Big Bang theory explains the period of time a fraction after the initial point of creation - up until now. It doesn't cover what caused that initial spark.
 
Time started with the big bang. Therefore there was not a time before it. So energy wasn't suddenly created.
 
The Big Bang theory explains the period of time a fraction after the initial point of creation - up until now. It doesn't cover what caused that initial spark.

Its easy.

When all of the energy is released from the stars and they collapse under their own mavity, then eventually the mavity of those will pull others into it, form black holes etc, galaxies spiral into those, the galaxies spiral into each other, until all matter in the iniverse converges into one spot, then the thing blows up again and the cycle repeats.

I watch Scott Manley, I got this. hahahahahhahahahaha
 
Time started with the big bang. Therefore there was not a time before it. So energy wasn't suddenly created.

Time is only one of many dimensions, so i would hazard a guess that another dimension might explain this. Or, maybe more likely, we measure time starting from the big bang, but that's just our starting point, not the universe's.
 
What are some alternative theories?
I've have a theory, although I've got no real reason to argue this is more valid than the Big Bang theory. A quick google seems like I'm not alone.

https://rationalwiki.org/wiki/C-decay

My theory goes that the rate of C is decaying. As it does that, things related to that also decay, including the bonds between the nucleus and electrons of atoms. Because of this, instead of the universe expanding, we're actually shrinking (and the universe stays constant).

This C decay is eternal. There was no start, there wont be any end. Like a fractal, the reduction is relative to the current level and the current physical properties of the universe as we know are related to the current state of that decay.
 
Its easy.

When all of the energy is released from the stars and they collapse under their own mavity, then eventually the mavity of those will pull others into it, form black holes etc, galaxies spiral into those, the galaxies spiral into each other, until all matter in the iniverse converges into one spot, then the thing blows up again and the cycle repeats.

I watch Scott Manley, I got this. hahahahahhahahahaha
But where did the energy come from in the first place? There must have been a veryf firstbig bang.
 
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