You probably know David Suzuki; the scientist, the broadcaster, the guy who sounded the alarm about climate change long before most knew it was a thing. But there are other things he can speak to with authority — and growing older is one of them. In his early 80s, Suzuki’s moving a little more slowly, but he’s still building treehouses for his grandkids and thinking big thoughts. Like, what would the world look like if we put our seniors on elder councils instead of out to pasture? He gets into it all with Anna Maria Tremonti: his long career, his father’s death, his fear of dementia and how to make peace with mortality.