I'm an undergraduate, doing Computer Science (and possibly a
Life Science minor) in NUS. For me, I plan on getting a Ph.D (aka
Permanent Head Damage to some 
) and then becoming an academic - I guess a
professor or lecturer in a Uni / Poly.
As for buses, I've always been interested in them since the age of
5. (My first bus guide was the 1986 bus guide/bus map combo)
