a point of departure
point of departure
1. Literally, the point from which one begins one's journey. All customers are being advised that the point of departure for the 3:30 tour bus has been changed.
2. By extension, the point from which further discussion, activity, progress, development, etc., takes place. We are hopeful that this summit will act as a point of departure for future policies dealing with the threat of climate change.
a ˌpoint of deˈparture
1 a place where a journey starts
2 (formal) an idea, a theory or an event that is used to start a discussion, an activity, etc: Professor Brown’s recent article will certainly be the point of departure for future research on the subject.