I'm curious about the decision to include the grammatical particles, and why it seemed necessary...anyone have a full enough understanding of the grammar to know why the decision was made to allow dropping the "li" particle with "mi" and "sina", but not getting rid of it in general? Chinese similarly lacks a 'to be' copula, and gets by quite well without a subject marker.
c.f.
EN: I (am) good
TP: mi pona
ZH: 我好
EN: Water is good
TP: telo >li< pona
ZH: 水好
Japanese explicitly demarcates the subject / topic, but seems to allow a bit more variety at the beginning of the sentence + uses that demarcation to add a connotation of emphasis or contrast with a previous topic + isn't a conlang. Anyone have a feeling for what it adds here?