# REFLOW Handbook The mainstream linear economy model that has largely influenced contemporary urban development is quickly coming to an end. Signals are popping up relentlessly around us showing that such a model is no longer sustainable, and that radical new forms of organising human activities are urgently needed to make sure the planet survives. Yet, we are barely aware that the way we produce things is a deliberate choice. Alternatives exist and can be intentionally chosen to reduce negative impacts and externalities on natural ecosystems and, in turn, on people and society as a whole. This handbook-- open, iterative and adaptive just like the cities we imagine-- is designed as a tool to help cities navigate and engage in this transition. This is an adaptive and adapted version of the REFLOW Handbook. To access the original file delivered to the European Commission, go to: {% embed url="" %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://books.fablabbcn.org/reflowhandbook/master.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.