Wikipedia, Historypin, Geograph.uk, GlobalVoices, etc. What happens when we can create a shared view of history together, rather than fragemented bits at odds with each other? Does this diminish our cultural heritage?
Homelessness is a complete failure of local community: it's a cliff for quality of life, also productivity and ability to contribute back to those around you. For the ill or injured, is a dramatic health risk. Housing at scale is also not expensive compared to other city infrastructure, as some cities have shown. What makes good solutions work, and how can obstacles to them be overcome around the world?