Historyspeaking topic
The asteroid thought to have wiped out the dinosaurs was so lethal because it struck a shallow sulfur-rich seabed rather than open ocean, a matter of a few hours' difference; had it landed elsewhere, life today could be entirely different. If the existence of all mammals, and therefore of humans, hung on the angle of a rock's impact, it shows how baseless the feeling that 'we were meant to be' really is.
— The Chicxulub impact and the sulfur deposits
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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