There is evidence for human settlement of Australia 65,000 years ago. What was human life like? By traditional archaeology, there was no agriculture, and only stone age tools. How could stone age humans have made the voyage from SE Asia to Australia?
Part of the answer is that the sea was a lot lower 65,000 years ago because so much sea water was tied up in glaciers, before the end of the last ice age. Still, it was a long way to go in a rudderless bamboo raft.