@@ -208,22 +208,15 @@ atomic symbol.
208208- <h6 id="stem">*stem*:</h6> an atomic symbol (`@tas`) - the name of a twig.
209209- <h6 id="bulb">*bulb*:</h6> The mold of the twig's contents.
210210
211−Most twigs have a *regular form*, beginning with a *sigil* which is
212−either a *keyword* or a *rune*. Some twigs also have a syntactic
213−*irregular form*; a few have *only* an *irregular form*.
211+Most twigs have a *regular form*, beginning with a *rune*. Some twigs
212+also have a syntactic *irregular form*; a few have *only* an *irregular form*.
214213
215−- <h6 id="sigil">*sigil*:</h6> a *keyword* or *rune* used to begin a twig
216−- *keyword*: the value of a stem, prefixed with `:`.
217214- <h6 id="rune">*rune*:</h6> a pair of ASCII symbols used to begin a twig.
218215
219−For example, the stem `%if` becomes the keyword
220−[`:if`](../../hoon/twig/wut-test/col-if/), with the rune `?:`. The first
221−symbol in a rune represents a family of related `twig`s. For example,
222−the [`?` family](../../hoon/twig/wut-test/) are all conditionals.
223−
224−The keyword or rune forms are up to the programmer's choice. Most
225−existing code uses runes, but the keyword form makes the learning path
226−easier.
216+For example, the rune `[?:]`(../../hoon/twig/wut-test/col-if/) is
217+Hoon's most common conditional, a branch on a boolean test. The first symbol
218+in a rune represents a family of related `twig`s. For example, the
219+[`?` family](../../hoon/twig/wut-test/) are all conditionals.
227220
228221A regular twig has two syntactic forms, *tall* and *flat*:
229222