>>155Some other loglangs I've read a bit about are Guaspi, Toaq Dzu, and (Institute) Loglan. Guaspi and Toaq are both much more succinct than Lojban/Loglan, but both of them have problems with phonology - Guaspi has overly permissive phonotactics, worse than Loglan even, while Toaq has nine, count them, nine phonemic tones.
Guaspi does some things regarding grammar better than Lojban. Noun and verb phrases have the same grammar, in Lojban terms a LE-SEI-NOI-NU merger, and every place of a verb is clearly defined as to which of these it accepts. Also all compound words have regular place structures, while in Lojban only a few series of them are regular, like -gau, -mau, -zu'e, etc.
Loglan is mostly just Lojban frozen in time, but one nice thing they did there since the split is change the morphology so it doesn't treat compounds specially when determining word boundaries (slinku'i test). This makes some words one syllable longer but removes some of the complexity when creating words without a parser at hand.
Many Lojban users do change the language as they see fit. The dialect spoken on IRC uses lots of innovations that won't parse with the official parser. The most popular way to change the language is simply creating a new function word - look at all these:
http://vlasisku.lojban.org/vlasisku/%22experimental%20cmavo%22Some of the better-known changes:
- Connective reform. Noun phrases, verbs, relative clauses and sentences all use the same words for logical connectives (ja, je, ji, jo, ju). Old style stays grammatical.
- Verb-nameword merger. Words with "name word" shape, e.g. {lojban}, behave exactly like verbs instead of their original more limited grammar. This one is backwards incompatible.
- Swapping well-used two-syllable words with less used one-syllable ones. Obviously backwards incompatible.