[ExI] Dyson Sphere? Why? Just move planets into Habitable Zone.

[spike at rainier66.com]

...> On Behalf Of Keith Henson via extropy-chat
Subject: Re: [ExI] Dyson Sphere? Why? Just move planets into Habitable Zone.

This is a remarkably stupid idea.

The amount of laser power needed to move a planet is just crazy, even if you are willing to spend millions of years...  Keith



Laser power is not needed for moving a planet.  Reflected waste energy from the star is used for that.  Granted it takes not millions but more likely tens of millions of years, and even then only for the smaller planets, such as a tenth of a lunar mass.

spike