Applying self-regulation and accepting feedback allows us to adjust the designs of the system based on our observations of how it functions. When a resource is being consumed to quickly, the system adjusts to either produce more or use less. This is a negative feedback loop. If the conditions are just right for a particular community (of plants or people), than that community will expand- a positive feedback loop. It is important to note that feedback can be delayed, as we have seen with CO2 emissions and global climate, so it is critical that we use small and slow solutions (principle 9).