Feedback loops: How nature gets its rhythms - Anje-Margriet Neutel
View full lesson: http://ed.ted.com/lessons/feedback-loops-how-nature-gets-its-rhythms-anje-margriet-neutel While feedback loops are a bummer at band practice, they are essential in nature....
========== Testing, testing, one, two, three. When your band is trying to perform,
feedback is an annoying obstacle, but in the grand orchestra of nature,
feedback is not only beneficial, it's what makes everything work. What exactly is feedback? The key element, whether in sound,
the environment or social science, is a phenomenon called
mutual causal interaction, where x affects y, y affects x, and so on, creating an ongoing process called
a feedback loop. And the natural world is full
of these mechanisms formed by the links between living
and nonliving things that build resilience by governing
the way populations and food webs respond to events. When plants die, the dead material
enriches the soil with humus, a stable mass of organic matter,
providing mo...