I love the show ‘Doctor Who’. I love the hope and adventure and tragedy and horror. I love how writers dial everything up to eleven and cram it inside fairy tale story logic.
But most of all, I love the rules of time. The rules of time are immutable and uncaring and can cause no end of grief. Fixed points in time are particularly nasty. They are things that must happen. These things are often something horrifyingly tragic. Fixed points in time show of how little any one individual, any one planet, any one anything is to the vastness of the universe and of time.
And even the mighty Time Lords can’t break through this. When the Doctor tries, in ‘The Water of Mars”, we see the horrible inevitability that even he can’t break. Instead it breaks him.
We humans like to delude ourselves into thinking we are special, that the rules don’t apply to us. We pretend that we can bend the rules to suit our needs.
We can’t. The rules of nature and the universe and time are what they are. We might be able to use our understanding of those rules to our advantage. But pretending that they don’t apply to us could get us killed.
Even the Doctor bows to fixed points in time
Professor Harbinger's School for Villains 