I want to segue into my closing questions because I promised you that we would finish in time for you to go see your PhD student graduate. Do you have personal advice to the listeners of this show? The most obvious thing would be to just do to pinch a phrase from Greta is that hope comes out of action. So acting is absolutely key here. What exactly your action is, will depend on your skills, your interests and what you're comfortable doing. But identify things that you can do to try and drive change. Don't always look for an immediate response, a success from that.

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