Seven years ago last Tuesday, The Emerald podcast was born. This episode reflects on the journey of the podcast so far and gives hints of what's to come, all through the prism of the number 7, which is — to say the least — a mythically important number. The myths often iterate in cycles and families of seven—seven swans, seven dwarves, seven ravens, and seven gates of the underworld. In many traditions, seven represents the completion of a cycle and the beginning of a new one. In Ay...