A key through line of all these tasks is that they are time consuming
Ethan Mollick, in Co-Intelligence, makes the point that part of the signal of any letter of reference is that this person is so good that I'll burn my own time to tell you about them. Does the same "signal" concept apply to peer review and student work? (It's not entirely clear to me it does; evaluation is a different task than recommendation. But I still feel like it's worth asking how we signal value based on our use of time in evaluative processes.)
