How about affixes for central vs noncentral usage of concepts? For example, you might make a rule that you can stick -cen on any content word to mean something is a central usage of the word and its meaning has not been stretched, or -sep to mean that it's figurative or the meaning has been stretched or there's a caveat.
I'm working on a conlang (constructed language) and would like some input from the Less Wrong community. One of the goals is to investigate the old Sapir-Whorf hypothesis regarding language affecting cognition. Does anyone here have any ideas regarding linguistic mechanisms that would encourage more rational thinking, apart from those that are present in the oft-discussed conlangs e-prime, loglan, and its offshoot lojban? Or perhaps mechanisms that are used in one of those conlangs, but might be buried too deeply for a person such as myself, who only has superficial knowledge about them, to have recognized? Any input is welcomed, from other conlangs to crazy ideas.