That doesn't necessarily mean there's spare space. You don't want every possible combination of letters to make a word, because then it becomes easier to mishear.
Someone in this thread mentioned that there are 37 different meanings in English for post. It's easy to mishear between those 37 meanings. You could easily move a third of those to pist and another third to pust. That would make it easier to get the right meaning.
To the extend that context allows you to choose the right of the 37 meanings of post, it should also help you prevent mishearing.
If you take the preposition of with with it's nine different meanings, move a third to wuth and a third to woth. People might make a mistake to mishear with when the ot...
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.