Seasons are a great tool for starting and ending well. They allow low-stakes launches and clean breaks. They make intensity easier by allowing fallow time and regeneration.
Seasons make it clear where you’re going, and for how long: “Season one will be six episodes, then we’ll have a fortnight off.”
Seasons make it easy for people to get off the train, and for making sure those that who stay on are committed: “We’ll do a month’s worth of meetings without fail – then everyone who wants to continue can re-register.”
And seasons often develop their own character: particular combinations of people; emerging themes; clusters of lessons learned. We remember them more vividly than endless, dusty summers; they season our lives.