But your bridge building analogy doesn't define what "solved" means still. When it comes to bridge building, "solved" means the bridge won't collapse under expe

But your bridge building analogy doesn't define what "solved" means still. When it comes to bridge building, "solved" means the bridge won't collapse under expected conditions. All you did was bring up an area where "solved" does have a definition, but that does nothing to define "solved" in the field we're discussing.