green_knight posted about
kaath9's take on
plots and roller coasters-- it isn't just a matter of more and less tension, it's a matter of appropriately placed surprises, with a corollary that you need more than one sort of surprise.
e_moon60 suggested in comments that a novel is also like a landscaped garden, which makes sense to me-- she put the emphasis (she's talking about the more subtle surprises in the "slow" bits, but it reminds me of the small pleasures which need to be in a larger context, but which are a lot of why I read fiction.