Quote:
Originally Posted by TheBlueRaja
No necessarily so, its not "theoretically" that hard to change the orbit of the earth by shunting a reasonably large object into an earth orbit and pulling earth further away from the sun by using its gravity to alter our orbit. Then its simply a matter of building a Dyson sphere, emigrating and hey, bobs your uncle, were alright but the earth might get a bit nippy.
I'd expect that to be a piece of pie in 6 billion years, should buy us a wee bit longer before the sun, well, dies.
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That being said, you'd want to build a dyson's sphere around a healthy star, not a dying star. Cirtainly not a red giant.