The fact that Eliezer has changed his mind several times on Overcoming Bias is evidence that he expends some resources overcoming bias; if he didn’t, we would expect exactly what you say. It is true that he hasn’t changed his mind often, so this fact (at least by itself) is not evidence that he expends many resources in this way.
The fact that Eliezer has changed his mind several times on Overcoming Bias is evidence that he expends some resources overcoming bias; if he didn’t, we would expect exactly what you say. It is true that he hasn’t changed his mind often, so this fact (at least by itself) is not evidence that he expends many resources in this way.