If you have been using Facebook for a while, it would probably be a good idea to block some time to review your timeline before it goes live over the next week or so. Check this Facebook post for details (and a lively discussion thread).
For better or worse, the new format is likely to bring back a lot of old memories. But it could also make it harder to shed past identities — something people growing up with Facebook might struggle with as they move from high school to college and from there to the working world.
“There’s no act too small to record on your permanent record,” said Jonathan Zittrain, a law professor at Harvard who studies how the Internet affects society. “All of the mouse droppings that appear as we migrate around the Web will be saved.”