Modern histories document later Daoist alchemical elixir practice as a health-misallocation tradition

Needham and later historians of Chinese science document external alchemy (waidan) in the Laozi-named religious field, including toxic mercury-gold elixirs taken for immortality. The dated public English instrument used here is that mid-century scholarly documentation of a received harm, not a clinical series from the sixth century BCE.

Context

The Daodejing itself is not a recipe book. Later religious Daoism attached immortality practice to the deified Laozi. The welfare harm is misallocated medicine and poisoning risk in that later tradition, with medium confidence on scale.

Laozi is not the sole author of every later object, law, or museum label that uses the name. Shared work with courts, excavators, printers, spouses, officials, and later states does not erase a documented role, and it does not make an ancient person the signer of a twentieth-century statute.

Why it matters

Do record the later cult that used his name.