[ExI] Milky Way is on the outskirts of 'immeasurable heaven' supercluster

[Anders Sandberg]

BillK <pharos at gmail.com> , 5/9/2014 10:07 AM:
Wouldn't there be some small technical problems about moving galaxies? 
You can't exactly tie a rope round a galaxy and drag it. 
Imagine building a Dyson-Shkadov stellar thruster around each star, and start adding the same momentum to every star. That will set things in motion.
In order to get anywhere at a decent clip you likely will need to use more dramatic engines, but the above can also rearrange the structure of the galaxy within a few rotations. Most likely you can then start ejecting hyperrelativistic stars as reaction mass using the central black hole to slingshot them, and then use the hole as the "anchor" for the galaxy. Gravity plus a bit of steering can do a lot.

Moving the Earth to the best habitable zone as the Sun ages will keep 
my company quite busy enough. 
It is a good start!


Anders Sandberg, Future of Humanity Institute Philosophy Faculty of Oxford University
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