The record sky
Every idea as a star. Blue where gravity copies records, amber where it erases them, violet where it does both.
Stars sit near ideas with similar content; constellations are the atlas clusters. Solid, glowing stars are established, rings are speculative, faint crosses are likely wrong. Select a star to open it in the atlas.
The classical window
Gravity copies records (above the line) mainly between the cosmic microwave background and the end of star formation. Before that the universe is opaque plasma; after it, horizons and dark energy hide and scramble almost everything.
Core samples
One drill core per cluster. Bedrock at the bottom is established; the loose layer on top is likely wrong. The thin bar under each core shows how often gravity copies or erases records in that cluster.
Records dissolving
A mass in two places, watched by 12 probes. At first every probe holds the whole answer. A horizon-like scrambler spreads it out until no fragment smaller than half the probes knows anything.