I'm born in Brasschaat (Belgium) as a son of two russophiles. Before I was four years old, I had already lived during a few months at Moscow university, where my parents have studied some time. Later I have been living a few years in Burǔndi, where my mother had spent her youth. My real name is David, but since in the English Wikipedia there was already a user with this name, I added the Kirǔndi prefix mu- for people.

For the moment I'm working as a physics researcher at Duy Tân University, Đà Nẵng. My interests include, of course, physics, but also astronomy. I play the guitar and I'm interested in Vietnam and surroundings. I'm also a big reader specialised in fantasy.

My major contributions are: BPST instanton, background field method, caloron, special conformal transformation, zeta function (operator), center vortex, some subsections in QCD vacuum, Old Quarter, Hanoi, functional determinant, fermion doubling, Cham language, Chru language, Gribov ambiguity, Vu Gia River, Yên River, and Cẩm Lệ River.

I’m more active on the English-language Wiktionary these days.