This is an regular meeting planned for every other week to discuss the group's progress and ideas for possible future meetups.
It has been suggested that each participant read one old and one new LW post beforehand, to be discussed at the meetup. The "Map and Territory" sequence seems well-suited as an introduction. Reading the entire sequence might be demanding for new people, so Eliezer's "The Simple Truth" will be the only required reading for the sequence.
The new post will be Chris Hallquist's "A Voting Puzzle, Some Political Science, and a Nerd Failure Mode", which criticizes some of Eliezer's old posts.