**Very** interesting interview with an applied topologist. Just as John Cook (the interviewer) I had no idea applied topology was a thing. Would not have thought homology can help with planning cellular network coverage. Apparently it does. #mathematics
@herid - my friend and former student Nina Otter is one of many people working on applied topology; she's using persistent homology in climate science. Her paper "A topological perspective on weather regimes" is open-access:
https://link.springer.com/article/10.1007/s00382-022-06395-x
I went to a big conference on Applied Topology in Japan a while ago; it seems to mostly be persistent homology.
@johncarlosbaez Very interesting. Climate science would have been behind even cellular network coverage on the list of things where I thought homology might be of use. nonwithstanding the fact that when I teach the hairy ball theorem I also always give a formulation that there is always a place on Earth with no wind.
