I don't like facing big problems head on, I much prefer to make small solid advances on the corners, if possible. Doing science is a bit like eating porridge: some people prefer to dig in, some prefer the borders. and of course there are problems with both approaches, but I much prefer the borders.
But some times you just have to make some decisions, so I'm taking a deep breath and reading the husband on ``time in language representations for beginners", a course he's given at ESSLLI in Saarbruecken in1998. Here are the notes.