I haven’t gotten around to writing much here recently as my live has gotten much more busy since I started teaching in Regensburg last October. I do enjoy teaching quite a lot. It is actually a great opportunity to revise in my basic math, given that in my BSc and MSc I was trained as a physicist and only moved towards math during my PhD. Nevertheless this does take quite some time out of my week, especially in combination that I commute weekly between Berlin and Regensburg. Hence writing updates here has become a lower priority in recent times also since the pandemic travelling has reduced significantly as a lot happens via Zoom these days and it isn’t quite as exciting to write an update about an interesting Zoom conversation as it is about in person visits involving travelling and all that comes with it.