Collapse of the Old

About a hundred years ago, the "Big Crunch" crushed human civilization and the physical laws behind it. The survivors launched the planet-level reality editor "Cornerstone", based on the remains of the old world, forcibly formatted and restarted the entire world. Thus, a new world was born - the city was bright and beautiful, science and technology were highly developed, history was unified and revised, and everything seemed in order. But at what cost?