Character flaws: The seven chief features of ego: A chief feature is a dominant negative attitude, a defensive and potentially destructive pattern of thinking, feeling and acting. We all have at least one. We create it during adolescence, and thereafter it manifests as a lifelong character flaw or personality defect.
Here's a writing worksheet to help you think about your story world's technologies. Technology is an important part of worldbuilding – it can help you develop people, culture, history, geography… almost anything.