How much material would a Dyson sphere need?

Related questions

1. What is a Dyson?
2. What are the three levels of the universe?
3. Would a Dyson sphere work?
4. What is Dyson famous for?
5. Are we a Type 1 civilization?
6. Has a Dyson Sphere been discovered?
7. Why does space have radiation?
8. Can we build a Dyson swarm?
9. What cloud extending to the gravitational limits of the solar system would comets come from?
10. How long would it take to make a Dyson sphere?

Tags

1. #solar
2. #radius
3. #would
4. #least
5. #around
6. #dyson
7. #which
8. #output
9. #surface
10. #available
11. #energy
12. #million
13. #72e17
14. #sphere
15. #times
16. #earth
17. #system
18. #useful