[Commentor] LC-315 Ian Jacobs [Working Group decision] We have added the following explanatory paragraph: "The page should lay out so that simple repeated scrolling in the same direction (axis) allows the user to experience all its content." We have kept the opt out clause, with explanations on cases where this might be needed (e.g. a map). [Commentor reply] yes [Comment] 
* What do you mean by "direction"? Do you mean "down, not up"? Do you mean "Don't make people scroll horizontally? * Delete "unless secondary scrolling cannot be avoided." In general, delete "except where impossible" as I've mentioned above.