Hah, +1 for HN users who attended that course in 2009 here. (I usually post on a pseudonymous account though.) I surely must know you, though I couldn't tell who you are from very briefly stalking your comments!
While we're reminiscing, I imagine you also took Concepts in Programming Languages in second year (https://www.cl.cam.ac.uk/teaching/1011/ConceptsPL/ ?), which (after a tour de force through all sorts of paradigms that were consigned to the fossil record for the time being) did advertise Scala pretty heavily. I found that course to be a true gem and haven't seen anything like it at any of the other universities I've passed through since then.
While we're reminiscing, I imagine you also took Concepts in Programming Languages in second year (https://www.cl.cam.ac.uk/teaching/1011/ConceptsPL/ ?), which (after a tour de force through all sorts of paradigms that were consigned to the fossil record for the time being) did advertise Scala pretty heavily. I found that course to be a true gem and haven't seen anything like it at any of the other universities I've passed through since then.