Same here. There is evidence of a lost continent in Southeast Asia. It is possible where Ainus, Basque, and Burushaski may have came from. It got washed away after the last ice age.
Sundaland.
"It is possible where Ainus, Basque, and Burushaski may have came from."
Jomon too.
" It got washed away after the last ice age."
Nah, still there underwater.