### Key Themes
- Opinions outside one's expertise
- Technology and innovation to harness environmental power
- Forceful displacement of people for development

### Lessons
- Self-developed talent without formal education can lead to misguided or harmful views.
- Popularity can tempt individuals to opine on topics outside their expertise.
- Technological innovations, such as dams, can have significant environmental impacts.
- Development projects often involve the displacement of people, echoing past and present experiences.