As do I - it's helpful to point out to students that at steady state, the replacement rate for a tenured professor is one. If the field is doubling in size over

As do I - it's helpful to point out to students that at steady state, the replacement rate for a tenured professor is one. If the field is doubling in size over their lifetime...it's two. But I'm also in a field where "alternative" careers don't carry quite the same stigma.