Changes

A ''skyhook'' has the crane-like ability to hoist an object into the air on a strong line attached to the object via hook but not attached to anything at the skyward end. While the [http://en.wikipedia.org/wiki/Skyhook skyhook] has long been in use for sundry purposes, its best use to date has been in a philosophical context as discussed [http://en.wikipedia.org/wiki/Darwin's_Dangerous_Idea here]. On a less profound level, the skyhook was the trademark shot of Kareem Abdul-Jabbar, who had just graduated from UCLA in 1969. In spring 1970, KA-J was leading the Milwaukee Bucks deep into the playoffs (note how the Lakers post-season run gives some temporal structure to the book), and he ended up being the all-time leading scorer and five-time NBA champion with the Lakers [http://en.wikipedia.org/wiki/Kareem_Abdul-Jabbar].