I was going to say that it must be "-
c" (because it retreats as fast as the light advances)
My stupid question is: why has the connection between my brain and mouth stopped working?
(oo, I was going to go into a concrete example of how I somehow seem to have invited a bunch of people over for dinner tonight when the absolute last thing I feel like is being face-to-face sociable -- no spurning meant to my internet friends here

-- but then it seemed all heavy and serious -- and oo, I've started rambling again, so I guess I better go down to the shops and start buying some food. Why didn't my brain tell my mouth this morning, when she phoned up to make sure it was okay if they all came round, to say something like, "To be honest, I really don't feel like it". Dumb brain. Dumb mouth.)