Sciencespeaking topic
One species of jellyfish can revert to its youthful form when it ages; in theory it does not die of old age. The formula for immortality already exists in nature. So why does this trick only work in a simple creature and not in us?
— Turritopsis / biological immortality
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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