Content decays. Posts fade. The newest writing glows brightest; older pieces dim and blur at the edges. This isn’t entropy — it’s editorial.
A feed treats every post as equally important. That’s a lie. The thing you wrote last week matters more than the thing you wrote last year, because you’ve changed since then. Decay makes that visible.
The star field works the same way. Magnitude isn’t permanent. The brightest stars are the ones you placed with the most intention.