## What this is A 3D recreation of one hundred years on one city corner, from the Jazz Age in 1925 to Present Day in 2025, with the same corner store, brownstone, alley, sidewalk, rooftop, and basement persisting across five generations of the Donovan family. Sixteen era stamps progress: JAZZ AGE → DEPRESSION → VICTORY → POSTWAR BOOM → NEW WAVE → DISCO ERA → NEON DAYS → DIGITAL DAWN → TECH BOOM → STREAM AGE → PRESENT DAY, then on reseed continues into the future for VERTI-CITY → NEXT EPOCH (2025 → 2125). The corner store morphs DONOVAN & SONS → RECORD SHOP → DINER → LAUNDROMAT → COFFEE. Streetcar tracks visible 1925-1955 get paved over. The bus shelter arrives in 1955, the subway kiosk in 1985, the EV charger in 2010, the rooftop garden in 2010, the AC unit in 1965, the neon sign 1955-2015. Cars evolve through six models (model-T, bel-air, wagon, minivan, EV, hover-car). Lamps go gas → fluorescent → sodium → LED. The TV in the brownstone window upgrades console-radio → big-tube → console-color → CRT-square → CRT-flat → flat-panel → holo-pane. Sixteen named Donovan family members span five generations from James and Mary in 1925 to newborn Cyrus in 2025. Fifty InstancedMesh pedestrians round out the block with per-decade clothing palettes. Twenty director cameras cut between corner-store wide, brownstone stoop, alley low, rooftop water-tower, sidewalk streetcar, subway entrance, basement garage, decade wide, montage push-in, sunset pan, block aerial, fire-escape POV, storefront window, streetlight low, corner cross-dolly, rooftop pan, pedestrian dolly, window pull-out, ground-level walk. The block *remembers*. localStorage saves Donovan family lineage between reseeds. After ten minutes the world advances another century — the cycle increments, elders age out, next-gen names cycle in, and the world extrapolates into VERTI-CITY → NEXT EPOCH. You don't play it. You watch it. And it remembers. ## Why this is mind-blowing Each decade has its own scene staged simultaneously *somewhere* on the block. As year-progress crosses 1955, the streetcar tracks pave over and the bus shelter materializes on the sidewalk camera while the corner store sign morphs from RECORD SHOP to DINER and the neon sign blinks on for the first time. Year 1985 the subway kiosk rises and the basement camera now shows a CRT-square TV instead of the console-color. Year 2010 the EV charger appears at the curb and a rooftop garden grows in the rooftop camera while the brownstone window TV upgrades to flat-panel. The Donovan family ages through it: James and Mary die, Edith and Thomas grow up and have Lila, Marco, and Sophia, who grow up and have Pilar and Owen, who grow up and have newborn Cyrus, all visible on the brownstone-stoop camera as scale-swapped child/teen/adult/elder meshes. Reseed and the overlay says "A NEW CENTURY OPENS · CYCLE 2 · 2025 → 2125 · SCI-FI EXTRAPOLATION." The hover-car arrives. The VERTI-CITY rises. Cyrus, the newborn, is now Gen 6 elder. Multiply that by 16 named family members, 50 instanced pedestrians, six storefront morphs, gas-to-LED street lamps, six car generations, seven TV upgrades, and a day/night cycle that drives window-count and neon brightness, and you've got a cozy century-stream that genuinely earns the comparison to *American Pickers* meets *Cyberpunk 2077* speedrun. Tone is gentle: death is an empty rocking chair on the stoop and an obituary line in the chyron.