IOTL, the Amerindians are clearly far behind the Old World when Europeans first discover the New World. The societies that they encountered such as Aztecs and Incas were at best about the same level of advancement as ancient Egypt and Sumeria IMO.
Yet in some other threads, posters claim that Amerindians could plausibly be just as advanced as the Old World with a PoD of 5000 BCE.
Personally I think it's extremely unlikely and almost borderline ASB. I don't think it is impossible but believe it is less than 1%. What do others think?