The world was born yesterday. The Creator made everything so that, when you investigate it carefully, you conlude that the world is billions of years old. And your memory before yesterday is carefully composed and implanted that you've been living your whole age. As if the androids in "Blade Runner" were made so.
And this is an example of a `generic time' creation theory. Just change "yesterday" into an arbitrary time in the past:
The world was born T time ago. The Creator made everything so that, when you investigate it carefully, you conlude that the world is billions of years old. And your memory before T time ago is carefully composed and implanted that you've been living your whole age.
Or more strangely, our whole experience is a memory to be implanted in the "to be created" future world. The world is not born yet. We are just being prepared to be made!
Well I don't say this very seriously. But who knows?




