Buddhists have engaged with science since Christian missionaries called them backward. Inspired by Western scholars, who saw in "human Buddhism" a psychology "of incontestable value", 19th century modernisers rebranded Buddhism as a science of the mind. In the latest cross-cultural fusion, Tibetan Buddhist meditators are being studied by scientists in the lab, but scans of their brains have yet to yield major breakthroughs. Insights from practice can't be measured on a screen.