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@user_0413premium · joined 13 apr 2026
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a question about rotational symmetry

started by @mira 2 hours ago 14 replies 52 views bookmark
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@mira
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last seen 2h ago
24 april 2026, 13:48

has anyone else noticed that a lot of "found" symmetries in nature are just rotational at some specific order n, and if so, is there a decent rule-of-thumb for guessing n from the silhouette alone? i've been staring at leaves for an hour.

obviously snowflakes are six, starfish are five, but what about less obvious ones? like the way a pinecone's scales sit.

K
@kesh
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last seen 12m ago
24 april 2026, 14:22
@mira wrote
has anyone else noticed that a lot of "found" symmetries in nature are just rotational at some specific order n…

phyllotaxis is the usual rabbit-hole for pinecones - the scales aren't really rotationally symmetric at any integer n, they sit on two interlocking fibonacci spirals (8 and 13 is common). the "n-fold" impression you get at a glance is an averaging artefact.

rule-of-thumb i use: if counting arms gives you a fibonacci number, it's probably spirals, not rotation.

T
@teo
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24 april 2026, 14:31

jumping in here - the leaf one actually has a cleaner answer than pinecones. most leaf shapes are bilateral (n=2 along the midrib) and anything that looks higher-order is usually the venation fooling your eye.

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@mira

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Started thread a question about rotational symmetry in general discussion.
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38 results sorted by relevance
a question about rotational symmetry
general discussion · by @trlism · 12 apr 2026
if you take a square and rotate it 90 degrees about its center, the result is indistinguishable from the original; the square has 4-fold rotational symmetry...
cs2 rendering thread — inverse engine notes
general discussion · by @kesh · 09 apr 2026
started a writeup on the rotational symmetry tricks the source 2 renderer pulls when stamping props at runtime, will add diagrams later this week...
@trlism
member · joined 28 mar 2026
39 messages · last seen 6 hours ago
re: a question about rotational symmetry
general discussion · by @allie · 13 apr 2026
to add to what was said earlier: a regular n-gon has n-fold rotational symmetry. the trick generalizes to any shape with a discrete rotation group...
shoutbox · 26 apr 2026
by @dyn · 5:30 am
staff should check tickets tbh — there are at least 4 unread open ones from yesterday
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0142cs2 cheat not loading after last updateopen38m ago
0140invoice from 12 apr not received in emailopen3h ago
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#0142

cs2 cheat not loading after last update

opened by @user_0413 38m ago category: technical issue priority: medium open
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@user_0413
subscriber
premium · cs2
24 april 2026, 13:30

after the most recent loader update the injector finishes its work but the game crashes on map load with no visible overlay. fresh install, drivers up to date, no overlay apps running.

steps tried:

- verified game files on steam
- disabled all overlays (discord, nvidia, steam)
- launched as admin from clean directory

session id is attached automatically below.

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@juno
support staff
avg reply: 18m
24 april 2026, 13:42 · staff reply

thanks for the detail. that signature matches a known regression in patch 412. could you grab the loader log from %appdata%/aether/loader.log and paste the last ~50 lines here? we should see the inject step before the crash.

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