he seemed to have made some videos that deal with IEI problems and duality. I don't think he mistyped himself.
https://www.youtube.com/watch?v=qI0X5ztkqd4
https://www.youtube.com/watch?v=RsMg91nBT4c
https://www.youtube.com/watch?v=FzwePVtVMWI
I just felt that his views don't offer anything new to me, that's why I haven't spend much time with him. SEI seems like a weird typing, but I disagree with many WSS typings anyway.