How to think when you don’t have a brain

Even a form of brainless slime mould can makes decisions about its next venture. What can it teach humans?

a yellow blob in a petri dish with long yellow veins growing out of it
A photo of the slime mold Physarum polycephalum growing in a petri dish. Credit: Nirosha Murugan, Levin lab, Tufts University and Wyss Institute at Harvard University.