Thanks for the question. Here”s what i said about this previously –
I would say learning new things is close to the top but at the top I would say learning surprising things – that wouldn’t be predicted or expected – would be the best thing.
Like when you plan an experiment and it absolutely doesn’t go as you expect. You then need to think again about what you thought you knew, and change your mind about what you’re looking at.
I like the constant challenge and the fact that science keeps me thinking. Being curious about how things work or if we can improve a process or making it less toxic is so exiting. I would go as far as saying that science keeps your mind young.