Tech is the major part of the solution to every problem. For example, homelessness can be solved to a large extend by the ROR hacker. For a start, a webapp for

Tech is the major part of the solution to every problem. For example, homelessness can be solved to a large extend by the ROR hacker. For a start, a webapp for the health practitioners, volunteers etc. to better organize would make it all more efficient - let's say by 20%. Webapps that create greater efficiencies in the housing market add another 20%. Add in a webapp to organize homeless advocates to lobby politicians, and you've gone a pretty large way. Software creators don't realize just how much of an impact they can actually have on the world.