Timeline lab

The generator's grammar walked through time: a need (○) now, a goal (△) in the future, and a re-planning walk between them — arrive, work, re-plan from where you stand, commit to one next step. Only that next step is lit; the further future fades into a luminous haze that brightens as Now approaches, and misses widen the cone. Four walks — pregnancy, elite, combat, exploration — one rule.