The interesting part of these new discoveries is that in addition to the overland migration there was an early coastal migration, which may have moved from North to South America relatively quickly. And, it resulted in some settlement along the coastal strips significantly earlier than the land migration did.
This idea has been around since the 1960s (Harrison) and 1970s (Fladmark), but only recently has there been good evidence. Erlandson (the primary subject of the article) has been at the forefront of gathering that evidence.
Wasn’t there some evidence awhile back that early polynesians settled South America?
Well I went to college after 1970’s but that wasn’t the way it was taught, and my college was in top ten at the time.
However they got here is what it is, and not something I would argue about..just interesting that it sounded like some NEW discovery and I did not equate it as anything new.