Passage Summary: Archaeologists found specific spearheads in Siberia. Since people moved from Siberia to North America, these spearheads must have been invented before they arrived in America.

Conclusion: The Clovis point was not originally created in North America.

Reasoning: Clovis points have been found in Siberia, and paleohumans migrated from Siberia to North America across a land bridge.

Analysis: The argument relies on a chronological and geographical link: if the points were found in the place people *came from*, they must have been invented there first. To strengthen this, we need to solidify that timeline. Look for an answer that confirms the Siberian points are older than any found in North America. Without this temporal evidence, one could argue that the technology actually moved from America back to Siberia, or was developed independently in both places.