I'm glad this has finally been put to rest. Per the Ars article: "...that makes for a grand total of 55 radiocarbon results in support of the earlier dates across the three studies."

The evidence of much earlier human habitation in the Americas has been around for decades, yet has always been shoved aside in favor of a hypothesis with all ends tidied up and bound with a neat bow. Humans traveling over ice sheets from eurasia to the americas never made a huge amount of sense when they could skirt it's resource-rich edges - and traveling by water is much faster, and much less calorically intensive than traveling by land. You also have your food readily available.