Proto-KD forms: (AN + OMY) + ST [TB] + OC = KD
Proto-HM forms: (OMY + AA) + ST [TB] + OC = HM
Austroasiatic migrates fast and far from southern China into Indonesia and India.
Internally diverse branches like Bahnaric and Kra diversify during the middle to late Bronze Age.
Austronesian is already deep in eastern Indonesia, and the Lapita culture forms after the start of the Bronze Age.
Central Sino-Tibetan and Kuki-Chin-Naga expand in the Indo-Burmese borderlands, following the Chindwin River upstream.
Burmo-Qiangic expands from the Sichuan Basin.