Some of the first humans in China came from the Americas?

Based on two kinds DNA evidence there were two migrations connecting both North and South American humans to those in China, during and after the last ice age.
Which way do you imagine they traveled? Both ways? Only one?

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LeopoldBloom · M

It's possible that some early Americans returned to Asia across the Bering land bridge, but the earliest possible evidence of humans in the Americas goes back no more than 20,000 years, while humanoids have been in China for hundreds of thousands of years. Humans have lived in China since way before the last ice age.