Because I am Insane?
No, seriously though.
I admit this is going to be a bit challenging, but these are the
courses I want to teach this year and it really made the most sense to
put them both in Michaelmas term (MT).
Quantum Matter 1 is a prereq for other quantum matter courses so it
has to come in MT. Anyons is early because it has no prereqs, so when
we distributed the courses it made sense to put it in MT to increase
the interesting offerings in that term.