Yes, I do know that describing fantasy scenarios is not a complicated task whatsoever.  Implementing them in a functional and practical manner is, though.  The sheer scale of the operation as you've described it is phenomenal.  It's like publishing a global phone book where the phone numbers change every minute.  If you know anything about how computers work, you're crazy if you think that's as easy to physically make and maintain as it is for you to imagine it.  And again, we'd see it coming a mile off and fork the network before they had a chance to implement it.  They can block or charge more fees for whatever transactions they like because there wouldn't be any.  The rest of the world would quite happily leave them to mine an empty chain that none of us would be transacting on.