1 unit = 1 µm · no momentum · Stokes tax ∝ mass⅓·v² · every nose now carries 5% receptor noise · teal & orange steer by TWO NOSTRILS 120° apart on the body rim (Jason’s design). A DEMO of proposed physics, not a certification.
| alive | µm travelled | E spent moving | |
|---|---|---|---|
| sessile | 0/10 | 0.0 | 0.0 |
| drifter | 0/10 | 75.1 | 0.602 |
| coli | 0/10 | 63.4 | 0.761 |
| whale | 8/10 | 296.9 | 3.563 |
| stereo | 2/10 | 278.6 | 3.343 |
The noise changed the winner. With honest receptors (5% noise per reading), the green run-and-tumbler that won v1 dies in every world — its tick-to-tick comparison sits below the noise floor. Naive temporal differencing is fragile.
Teal guys are Jason’s two nostrils, 120° apart on the rim: steer toward the stronger side, every tick. Single readings are often wrong — but steering errors average out while the body keeps moving. Across six worlds: 30/60 alive; nothing without nostrils survived anywhere.
The orange whale runs the same nostrils on a body 3× wider — a ~6µm baseline reads ~24% contrast against 5% noise: near noise-proof direction. It matches the lean swimmers’ survival while paying the full fat tax, and its survivors are the richest animals in the pond. Size buys senses.
Caveat, honestly: real E. coli integrates its nose over many ticks; a smoothed temporal comparer would fight back. For evolution we don’t pick — the body offers both nostril inputs and the genome wires what pays.