I don’t think that either Esperanto or Lojban is the perfect language. Expressing an idea in either of those languages usually takes 1.5 the amount of time as it does in English.
Latin it is! I’ll bet some people won’t enjoy the return of a world-spanning political authority communicating in a language no normal person knows though.
In this case it would be a feature, not a bug.
If a unproductive language is what you want you could go for Toki Pona. It’s even easier to teach than esperanto.
The point would be the opposite: to make it hard but usable.
Latin it is! I’ll bet some people won’t enjoy the return of a world-spanning political authority communicating in a language no normal person knows though.
That’s their problem.
Although it sounds profound.