Hindsight · review build · data not yet validated
Since information markets are largely world markets, the U.S. has benefited greatly from its immigrant history. Being comprised of all the world’s peoples — specifically, the descendants of peoples from around the globe who had endured great risk for a better life — it has the ideal heritage for the new knowledge-based economy.
Grader A: hit
Immigrants made a large, measured contribution to the US knowledge economy. A 2007 Duke/Berkeley study found an immigrant key founder in 25.3% of US engineering and technology companies founded 1995-2005. The 'ideal heritage' framing is opinion, but the gradable part (benefit from immigration in the knowledge economy) holds.
Test: Share of US tech companies founded 1995-2005 with an immigrant key founder: 25.3% (above the 20% threshold).
Grader B: unfalsifiable
This is a causal and interpretive statement, not a forecast of a measurable state. Some data are consistent with it: Wadhwa's 2007 research reported immigrants behind about 25% of US tech startups. But no measure can confirm or refute that the US 'benefited greatly' from its immigrant heritage because of world information markets.
Test: No adoption test applies. Nearest data: about 25% of US engineering and technology startups (1995-2005) had an immigrant founder (Wadhwa, 2007).