Philosophyspeaking topic
Most equations in physics make no distinction between past and future; both directions work equally well. So what makes time flow only forward, why can we never go back, or is the 'flow' just something our brains invented?
— the arrow of time, entropy
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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