I think you mean sentient species? (mistake done twice in the text)sensible species
I think the even-ness of "200" implies it's "about", so I'd vote to loose the "about" part. Or even just have: "settled two centuries ago".settled about 200 years ago
I'm not sure I fully understand this sentence. They're "positive" in general outlook of life? I.e. not grumpy? Yet they have nothing to learn from humans, who travel through the very fabric of outer space? Sorry if I sound negative, I'm just pinpointing what I find odd with this last line.As to the Voicedeep, they are positive: there is nothing of value they could
possibly learn from us.
Welcome back, and keep up the good work!