I explicitly said I don't think any astrophysicist believed that. Every single one is able to do that back of the envelope calculation, and I suspect that those

I explicitly said I don't think any astrophysicist believed that. Every single one is able to do that back of the envelope calculation, and I suspect that those involved in the SETI project actually did it. They just didn't care. As long as the population was ok with a search for ETs, the money kept coming.