Your use of Stack Overflow’s Products and Services, including the Stack Overflow Network, is subject to these policies and terms.
ROILA (RObot Interaction LAnguage), a constructed language for communication between robots and between robots and humans, comes with a 5 vowel system. the vowels are written a e i o u but their sound ...
All natlangs have both consonants and vowels, but it's not immediately obvious why a human language couldn't be made from only vowels.
Has anyone theorised about why natlangs always have consonants?