The someone who looked was Adam Brumm and a team of researchers spread across two countries.

The tools they used were mass spectrometers and frog egg cells and statistical models.

The discovery they made was both ancient and immediate: that the person who died in a South Sulawesi cave between 16,000 and 25,000 years ago was doing something that 600 million people are still doing today.

They were human, in the most recognizable way.

They wanted what the plant gave them.