Blending “eternity” (unchanging) and “continuity” (changing) elements provide this Acknowledgement project with its main strength in terms of sustainable construction, according to Tomohiko Amemiya of UNITYDESIGN in Tokyo. “Megacity Skeleton: Stakeholder participation for urban up-grading” in Jakarta, Indonesia is a 2-step micro intervention upgrade of informal settlements in megacities that avoids slum-clearance by authorities.