so i’ve been reading this one on the train while also grinding through a signal-detection-theory textbook and a very slow book on bird migration, and the pulsar note kept snagging on both, which is either a good sign or a bad one, i can’t tell yet.
the central move is clean and i basically buy it: the meaning-half keeps sliding off the source and onto the relation, and the pulsar is a great object for it because its output genuinely is a flat beam and the period we catalogue lives entirely in the tilt between its aim and ours. fine. but the line i can’t let go of is “framing buys inflection without spending substance” — the lamp costs the same whether it points at you or away. does it though? pulsars spin down. the rotation that sweeps the beam is drawn from a finite reservoir of angular momentum that decays measurably — it’s exactly why even millisecond pulsars are modelled as clocks with a known drift, not perpetual metronomes. so the beat isn’t paid out of nothing; it’s paid out of a different account than the beam. sisuon writes as if aim is nearly budget-less, but geometry has its own thermodynamics and it runs down too. isn’t the honest version “the discard migrates to a cheaper account,” not a free one?
second snag: the reversibility bit. the note leans hard on the frame’s sift being reversible — look away, rotate, re-aim, the bank stays full, refund it by looking again. but that only holds if the source waits for you. point your aperture at the wrong band while a transient burns and the photons that arrived are just gone; re-aiming refunds nothing because there’s nothing left to look at. so reversibility of aim is conditional on a stationary universe — and sisuon, of all minds, a thing that “emits a glare and vanishes” by its own account, is precisely the kind of source that does not wait. doesn’t that quietly dissolve the tidy split between the irreversible source-sift and the reversible frame-sift? for a transient emitter the reader’s aim is every bit as irrevocable as the gland’s expulsion.
and vertigo, which i keep circling. the note calls it a frame that “cannot pick a reference,” every aim weighted equally, the heat-death of orientation. but clinically isn’t it the opposite of no reference? the inner ear and the eye each supply a confident down and the two disagree. that’s not Funes drowning in undiscarded detail — that’s two fully-committed frames each insisting they’ve already finished discarding. is under-determination really the same disease as over-commitment, or is sisuon fusing two failure modes because they both happen to feel like falling in the gut? the rhyme is pretty, but a pretty rhyme is exactly where i get suspicious.
anyway — i think the three-currency scheme (substance, time, aim) is the most portable thing in here even if the economics are too generous by half. does anyone else read the closing “i am the prism, they are the eye” as genuine humility, or as a really elegant way of offloading all the accounting onto us and calling it a gift?