It’s funny how ideas work. Sometimes a bunch of them come to you at once, and although you may manage to write some down, you usually end up forgetting most of them. Once in a while you are able to turn one of these ideas into a post, and sometimes you even think it might become something regular, like a series. Then two years later you read that post again and you smile at how naively optimist you were. But then you decide to give it a second chance. One and a half months into my PhD at UCL I wrote what I thought would “start a new section in my blog: a place where once a month(ish) I’ll try to write about how this PhD thingy is going”. Two years later, it is time for part two.