Archigram comprised Warren Chalk (1927–88), Peter Cook (1936–), Dennis Crompton (1935–), David Greene (1937–), Ron Herron (1930–94), and Michael Webb (1937–). Together, in the 1960s and early 1970s, they envisioned the future of architecture in ways that enthralled a generation. In an era defined by the space race, they developed a 'high-tech', lightweight, infra-structural approach that stretched far beyond known technologies or contemporary realities.