A Conversation with Freeman Dyson
Planetary Radio: Space Exploration, Astronomy and Science
00:00
The Future of Science Fiction
I suspect the Dyson Spheres are far better known than Dyson Trees. But science fiction writers have loved those as well. The point is that any place where gravity is weak, that includes comets and small asteroids or anywhere where there's not a big mass,. That means that a tree can grow essentially forever. It doesn't have to fight against gravity. A tree can be 100 miles high. So it's very easy for trees to grow out into space and collect sunlight from very large areas with a transportation system which a tree essentially is. And a hundred years, I mean it may be too long for you and me, but it's not very long.
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