Examples of the three levels of evidence...
Phenomenon: Serotonin is part of the physiological substance that constitutes status.(6) Cooperations and alliances are integral part of status.(7)
Interpretation: Serotonin is a regulator of negative emotion and emotion in general can be optimized via dominance and cooperation.
The broader picture: You cannot have optimized serotonin while being weak (lack of dominance) or being alone and only dominant (lack of altruistic behavior). Depression as a side effect of deregulated serotonin can only be considered a physiological disorder if there is no disorder in the rest of one’s life, like being isolated or lacking competitiveness. Therefore, self-development depends partly on the correct (factually and morally) application of status principles in your life. Computer game addiction is an example of pathology and developing your (creative knowledge work) business to support your loved ones is an example of healthy behavior.
Phenomenon: Feature Requests are truly that. Users normally express their wishes in the form of a specific app behavior. E.g.: The Archive should allow for multiple tabs. The Archive should allow for multiple windows.
Interpretation: Feature Requests depend on the individual representation of the problem. They are the concrete manifestation of more abstract problem. User say “I want multiple tabs and multiple windows!” rather than “I have difficulty to handle complex projects with a lot of notes and layers. I think that multiple tabs and windows would help me.”
Practical Application: Ask for the specific use cases. Ask for the perceived problem and try to get the actual problem and not the individual representation of the problem that manifests in a specific feature request. You can decide which steps you need to take much better once you understand the problem in this context.