Unlikely Australian aborigines have been isolated 30000 years or more coming from Asia American natives are not genetically similar and have been here 20000+ years they would have more genetic markers throughout Asia but are distinct onto themselves

I have read part way through this article but my sticking point is the mention of navigation. My understanding is that the original inhabits crossed a land bridge about 50,000 years ago and became isolated when it collapsed.

I’m with Dave on this regarding required evidence.

Ponder indeed....I will have to go back to it...it's a lengthy read. But thanks for this. interesting theory!

Extraordinary claims require extraordinary evidence. I haven't seen that evidence yet.