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Could 4D hyperlocal activism be the ultimate tool for popular resistance? This Counterpoint's title quotes the response of the main protagonist in Rob Sitch's 1997 film The Castle to developers' attempts at the compulsory purchase of his home. His act of refusal follows on from the decades-earlier writings of Herbert Marcuse and Ralph Adams Cram on the perils of capitalism and how they might be overcome. With reference to these, Mark Burry, a practising architect and Professor of Urban Futures at the University of Melbourne, considers the impact of technological enfranchisement on liveability.