[Question] Examples of someone admitting an error or changing a key conclusion

I think that changing our minds and owning up to past mistakes are two of the key virtues of effective altruism. I’d love to acknowledge instances of this and try to collect such stories as examples to follow.

Here are some examples to start with:

Do you know of others? Please feel free to share examples of yourself doing this.


I think the best examples would have the following properties:

  • An important error or mind-change

  • A public change of conclusion or explanation of the error

  • In a context or conversation that’s relevant to effective altruism


Also relevant:

P.S. This is partially prompted by the Criticisms Contest. I’d be excited to see people engage with criticisms or red teaming of their work — especially when this leads to real changes of position or conclusion.