First principles

The theory behind Circaevum stitches together a handful of staples—memory techniques, perspective, neuroscience, physics, and the nested rhythms of Earth. Together they motivate a planetary scaffold for temporal information you can move through, not just scroll.

1. Method of loci. Attaching what you need to remember to specific places along a familiar path is one of the oldest memory arts. Circaevum generalizes that instinct: moments and spans get addresses on a shared spatialized frame so recall can reuse navigation instead of only rehearsal.
2. The overview effect. Astronauts describe seeing Earth whole as a shift in scale and care. The prototype aims at a smaller, practical echo: a lifted view of your timelines—enough distance to see structure, enough detail to land on a day—so scheduling stops feeling like a wall of text.
3. How the brain processes space. Dedicated neural machinery encodes place, direction, and distance; our minds are built to triangulate and revisit locations. When temporal data is laid out as geometry, it taps the same systems that already keep track of rooms, routes, and maps.
4. How the brain processes time. Duration, order, and “when did that happen?” draw on overlapping circuits; abstract calendars and alerts often keep time off-stage in working memory. Pairing time with a visible, stable layout brings those relationships on-stage as positions you can scan and compare.
5. Worldlines, in spacetime topology. In physics, a worldline is the path of a body through spacetime. Circaevum uses that picture gently: your events and Earth’s motion trace trajectories against the same backdrop, so “before / after / alongside” reads as continuity in a volume, not only as ticks on an axis.
6. Aevum: a mode of existence. Borrowing from the longer write-up: a way of holding past, present, and future in one navigable field without collapsing everything to a single “now.” The interface is a working sketch of that stance—panorama plus drill-down—rather than a claim to have captured consciousness.
7. Harmonics. Day length, lunar phase, seasons, and longer beats are coupled oscillations set by Earth’s mechanics. Representing time on a planet-true scaffold makes those nested cycles visible as structure you can orient to, whether or not you rely on them for planning today.

Overview of Circaevum on Notion expands each of these threads (space in the brain, time in the brain, worldlines, aevum, harmonics, overview effect, method of loci).

From theory to the scene

The prototype turns that stack into something you can steer: same planetary frame each session, zoom from wide spans down to a day, layers for your own events. The goal is a legible scaffold—so spatial habits and temporal content meet in one place.