Complex sentence: In the above thread, Antony Alexander argues for his Language X proposal in which an international council makes deliberate and gradual changes to World English, which he sees as already entrenched on the international scene.
Split into simpler sentences: In the above thread, Antony Alexander argues for his Language X proposal. This involves an international council making deliberate and gradual changes to World English, which Alexander sees as already entrenched on the international scene.