Izzy
It’s curious that despite this cultural revolution that led to founding of planet Vulcan they are still basically equals technologically. It doesn’t appear that a few thousand years of excess emotion and violent tendencies has been at all detrimental to Romulan technological advances.
Play Night Bird!
The weird 6 layer chess they have is just as baffling.
Edit: I did find this page though that explains it in great detail. http://meder.spacechess.org/3dschach/chess3d.htm
What about this one?
A big part of science fiction is how fictional technology and environments of the future that would seem very strange to us are completely normal to them. I agree that this should also extend to society itself and its speculative future progress. In the same sense that a character wouldn’t find a replicator to be strange technology it wouldn’t make sense to treat someones sexual orientation or gender to be strange if it is a social issue that was supposedly a thing of the distant past. I find that a lot of 21st century social issues seem to find their way into modern Star Trek in ways that don’t make a lot of sense.