Sciencespeaking topic
That screech when you bring a microphone near a speaker is really sound feeding on itself: a small sound grows, and the growing one grows more. The same loop exists in bank runs, viral videos, and epidemics. Why do some small things grow unstoppably while most fizzle out?
— positive feedback loops
practice with this topic
Set the timer (5-30 min), take 20 seconds of prep if you like, start talking. Jot your thoughts onto the sticky-note board.
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