The Met, a shining web of living cables hanging across black space, is home to all kinds of humanity who have outgrown their planets, but when some venture outside the Met and create a risky culture of human and artificial intelligence, war becomes imminent.
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Used availability for Tony Daniel's Metaplanetary
April 2001 : USA Hardback
July 2002 : USA Mass Market Paperback
October 2009 : USA, Australia, Canada, UK Kindle edition