Sciencespeaking topic

Most of the cells in your body renew every few years; your skin, the lining of your stomach, and much of your blood are largely different from a few years ago. So you call a body that has almost entirely changed as matter 'the same me.' If what stays 'you' isn't the matter, then what is it?

— cell renewal

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.