...but it is impossible to ever explain it all. 
That is quite the leap...
1st step: Explaining the big bang...with advances in string theory, particularly 11 dimensional Supergravity, we are closer than ever to reconciling macrophysics and particle physics. With these advances we can come closer to calculating the movements of molecules in the first moments of the universes inseption.
BD: The primordial ooze thing is the evolution of the first bacterium, not the earth.
Hold on I have to do some work, will be back with Step 2 in a few...
