Dean Olsher talks with a maker of build-your-own-casket kits, a mortician on his way to pick up a body, a paleontologist with the long view (the extra-extra-long view) of mortality, a historian who thinks we look at death the ways Victorians looked at sex, a retired surgeon who’d never want to go back to life before his cancer diagnosis, and an author who argues we should have our funerals while we’re around to enjoy them, (audio)