Especially this > We need to stop planning project primarily by spreadsheets, where the dominating inputs are costs you can measure easily. There are factors

Especially this > We need to stop planning project primarily by spreadsheets, where the dominating inputs are costs you can measure easily. There are factors that are not reflected in those calculations that not only affect the quality of the place you're creating, but also the financial burden that the community will have to bear for decades down the line. Did they just completely assume that this is the case? There are very talented people who develop modelling for urban planning and infrastructure that do look into these costs and their impacts. But there is no perfect solution, only tradeoffs.