Guest: Open Lines with Dr. David Livingston. Topics: SpaceX reusability, reusability assumption making, fly back boosters, "Space, Inc." Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, http://thespaceshow.wordpress.com. Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use.