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4 results for “central bank reserves” in Science
Science · 3 November 2026
Made, Not Mined: Synthetic Gold and the Future of the Global Gold Trade
…not make it irrelevant to a long-term holder of gold — forty-year horizons are normal for central banks and pension funds — but it does place it firmly in the category of structural risk rather than market event. · What it would cost: the economics of making an ounce · Every meth…
Tomas Herrera · 25 min read
Science · 8 August 2026
The Metal That Went Medical
…ce an entirely different bar, because the body's inability to metabolise gold becomes the central safety question rather than a footnote. · Regulators have pushed hard on particle clearance data as a result. Below roughly 5–6 nanometres, gold particles are small enough to pass th…
Amara Okonjo · 19 min read
Science · 9 August 2026
The Metallurgy of Karat
Pure gold is too soft to hold a stone, too soft to hold an edge, and the wrong colour for half the world's taste. Almost everything you own that is gold is a designed alloy — and the design is where t…
Tomas Herrera · 17 min read
Science · 10 August 2026
Where Gold Actually Comes From
Every gram of gold on Earth was manufactured in an astrophysical catastrophe, arrived here after the planet had already formed, and was then concentrated by hot water. Three separate accidents, none o…
Tomas Herrera · 17 min read
