Think about the last time you told a story to a friend. You probably adjusted it halfway through. You saw their eyebrows lift. You noticed them lean in, or glance away. You clarified a detail. You ...

Some computers are easy to spot. Artificial, human-built computers like those found in smartphones and laptops are abstract ...

A dynamical system is a particle or ensemble of particles whose state varies over time and thus obeys differential equations involving time derivatives. Analytical resolution of such equations or ...