It seems that every cyclingnews report about the world championships stresses that this year's course will the hardest since the 2003 world championships in Hamilton, Ontario. I live in Hamilton, and have ridden that course, and while I wouldn't presume to say that I could have kept up with the world's elite, it didn't seem that demanding. There was one short, steepish climb and one longer, but not-so-steep climb. I can imagine it would wear on you over multiple laps, but are the world championship courses typically flatter?