Rationality requires intelligence, and the kind of intelligence that we use (for communication, progress, FAI, etc.) runs on language.
It seems that the place we should start is optimizing language for intelligence and rationality. One of SIAI's proposals includes using Lojban to interface between humans and an FAI. And of course, I should hope the programming language used to build a FAI would be "rational". But it would seem to me that the human-generated priors, correct epistemic rationality, decision theory, metaethics, etc. all depend on using a language that sufficiently rigorously maps to our territory.
Are "naturally evolved" languages such as English sufficient, with EY-style taboos and neologisms? Or are they sick to the core?
Please forgive and point me towards previous discussion or sequences about this topic.
For a few years now, I've been working on a project to build an artificial language. I strongly suspect that the future of the kind of communication that goes on here, will belong to an artificial language. English didn't evolve for people like us. For our purpose, it's a cumbersome piece of shit, rife with a bunch of fallacies built directly into its engine. And I assume it's the same way with all the other ones. For us, they're sick to the core.
But I should stress that I don't think the future will belong to any kind of word language (whether natural or artificial). English is a word language, Lojban is a word language, etc. Or at least I don't think the whole future will belong to one. We must free ourselves from the word paradigm. When somebody says "language", most people think words. But why? Why not think pictures? Why not diagrams?