Facts Are Like Bricks. Assumptions Are Like Bricks Which Vanish When Facts Turn Up.

A fact is like a brick. It's concrete. Something you know you can build a structure with that will stand by itself when completed. As long as the ground upon which it's been built isn't subsiding.

An assumption is like a brick which instantly vanishes when the fact it claimed to be calls BS and outs it as a fraud. 

Losing the odd brick near the top of what you built isn't so bad. Holes created so high up don't have much weight to bear. But losing bricks at the base of what you've constructed isn't so good. When facts suddenly turn up at your house telling your assumptions to GFTO then you have several options.

Close your door in the face of the facts and go back inside. But sooner or later your house will start creaking, then groaning, before collapsing.

Or see if at first the facts will fit in the spaces your assumptions used to be. Or strip the house back to re-lay where the facts should be and build your house up once again. Or just demolish it completely, and start from scratch if you have the energy, and know how to build houses. Just never ever fall for the illusion that you can live in someone else's dream. Never buy a Barrett or Persimmon Home.