Yeah, I think the Siberia-Alaska oversea connection had been established by then as well. So had the Kilwa Sultanate (connecting much of Africa). But I think t

Yeah, I think the Siberia-Alaska oversea connection had been established by then as well. So had the Kilwa Sultanate (connecting much of Africa). But I think to claim the whole world, except islands, was connected we’d have to include Australia too. And before the 17/1800s there isn’t a lot of evidence of contact between Australia and Indonesia. According to this article, maybe contact started around 1500 or so: https://amp.abc.net.au/article/9320452 https://amp.abc.net.au/article/9320452. Though in the same article they mention some 1000 year old Kilwan coins found off the coast of Australia so you may actually be right that we were fully connected even in 1000!