Flint Dibble on archaeology: what the evidence says · JRE #2136
SUBJECT: ARCHAEOLOGY
Not a true/false call. Every claim is logged with its sources; read the exhibits below.
you can see the population of rice at archaeological sites, it starts off mostly as brittle, meaning it shatters easily, and over time it takes about 1,500 years for rice to evolve to become fully domesticated, where it hangs onto the plant more easily.
What the evidence says 01 / RECORD
Archaeobotanical work on rice in the Lower Yangtze region of China (led by Dorian Fuller and colleagues) does show the mechanism Dibble describes: early cultivated rice populations are dominated by brittle wild-type spikelet bases that shatter and scatter their seed, and over time the proportion of tough, non-shattering domesticated-type bases rises as the crop retains its grain on the plant. The literature, however, generally frames this as a slow, protracted process: Fuller's Tianluoshan study documents non-shattering bases rising from 27 percent to 39 percent over only about 300 years within one site, while the broader loss-of-shattering trait is described as becoming fixed over at least two or three millennia, and reviews put the overall transition from wild to fully domesticated rice at roughly 3,000 years (about 10,000 to 7,000 years before present). Dibble's core claim about brittle-to-non-shattering evolution is accurate, but his figure of about 1,500 years for full domestication sits at the short end and understates the commonly cited multi-millennial span.