That larger puzzle — the full reconstruction of how the Americas came to be inhabited, through what specific population histories, at what specific times, through what specific routes — is still being assembled.

Each new ancient genome from Siberia or Beringia or the Americas is a new piece.

Each new analytical method is a new way of looking at the pieces already available.

The child at Mal’ta provided the first clear sight of one of the most important pieces.

He did not provide the whole picture.

He did not need to.

He provided enough to change the framework, to make a new kind of understanding possible, to reveal the dual nature of the ancestry that founded the Americas.

That is his legacy in science.