A recuperator is a heat exchanger that helps boost the efficiency of some gas turbine engines. In such an engine, air is compressed, burned with fuel, and used to drive a turbine. The recuperator passes some of the heat of the exhaust gas back to the air as it comes through the compressor.
Recuperation is the process by which the spectacle takes a radical or revolutionary idea and repackages it as a saleable commodity.
An ironic example of recuperation, it could be argued, was the 1989 Situationist exhibition staged in Paris, Boston, and at the ICA gallery in London's Mall, wherein both original situationist manifestos, and contemporary Pro-Situ influenced works (records, fanzines, samizdat-style leaflets and propaganda) were presented as museum artifacts for the mass consumption of the art establishment.
Veteran Situationist-influenced critics of recuperation were not surprised to learn that Wilson had invested funds in collecting Situationist-linked artworks, including Debord's "Psychogeographical Map of Paris" (1953), some of which he allowed to be shown in public at the Aquarium event in 2003.