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Index/People/Klein

Klein

Family name

Fact-Checks

2 results
Feb 2, 2026

is there a fifth dimention?

The question "" has two correct short answers depending on meaning: mathematically, yes — five-dimensional spaces are well-defined tools in geometry and physics ; physically, the existence of an extra...

Jan 20, 2026

What role did foreign official sales play in Treasury yield moves during 2024–2025?

Foreign official sales contributed materially to upward pressure on Treasury yields in 2024–2025 by reducing a key pool of demand at a time of large U.S. issuance and changing market expectations, but...