Can it all come down to a question of impulse?

Not the impulses of a moment, but the impulse of physics.  The rate of change at which force is applied.  The amount and type of impact as it were.

Can that really be the key? 

Life comes down to a matter of moments.  Nothing happens without reason.  All that exists has a purpose.

Temporal paradox occurs when past events change, yet the past is as uncertain as the future....

Prophecy, pre-determinism, free will, time travel, the purpose of our lives.  Can it all be an nth dimensional impulse vector?

hmmm.... I must contemplate further.

I think it's a distinct possibility. We are finding out more and more these days that the seemingly unexplainable can be quantified and have physics rules attached. Let me know if you ponder more and come up with anything.