How did John Hopfield decide to work on the topic that led to his Nobel Prize? "I was now looking for A PROBLEM, not a problem ... How mind emerges from brain is to me the deepest question posed by our humanity. Definitely A PROBLEM." More here: The solution: https://www.pnas.org/doi/abs/10.1073/pnas.79.8.2554 "In the model network each "neuron" has elementary properties, and the network has little structure. Nonetheless, collective computational properties spontaneously arose." image