In a recent post, I remarked on the fact that hardly any self-described climate sceptics had revised their views in response to the recent years of record-breaking global temperatures. Defending his fellow “sceptics”, commenter Cassander wrote

When’s the last time you changed your mind as a result of the evidence? It’s not something people do very often.

I’m tempted by the one-word response “Derp“. But the dangers of holding to a position regardless of the evidence are particularly severe for academics approaching emeritus age[1]. So, I gave the question a bit of thought.

Here are three issues on which I’ve changed my mind over different periods

* Central planning
* War and the use of violence in politics
* The best response to climate change
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