Architecture: plain * in the code span, Gitea flags U+00D7 as ambiguous

Architecture.md

@@ -111,7 +111,7 @@ that changes *when* rather than *what* costs nothing but a term on that one argu
 source's `Time scale` is a factor on it and `Prewarm` a summand, so neither needs a frame of
 simulation nor a line in the drawing code.
 **Which clock, though, is one decision for the whole program.** `core/time.ts` holds it: it
-accumulates `dt × scale` per frame instead of reading the wall clock, and the world's delta is the
+accumulates `dt * scale` per frame instead of reading the wall clock, and the world's delta is the
 very step it took — so a global time scale is a single multiplication that reaches behaviours,
 particle age, shader time and the animation preview alike, and a pause is that scale at 0 rather
 than four things being frozen apart. **Anything in the program that moves by itself takes its