[extropy-chat] unidirectional thrust

[Alfio Puglisi]

On Mon, 14 Mar 2005, spike wrote:

>> If Mach's Principle is true, and inertia is the whole universe
>> resisting your acceleration (when gravity is light speed dependent,
>> thus must have a time travel component to resist your push when you
>> push), there has to be a way to use it to lever one's spaceship against
>> the entire universe in return.
>>
>> Mike Lorrey
>
>
>If this drive works, then AC Clarke's disappointing ending to
>his otherwise excellent Rendezvous with Rama suddenly makes
>a lot of sense.
>
>spike

I don't see how such a propulsion system must be wrong a priori. The so
called "vacuum" has a dielectric constant, has a lot of weird spacetime
and quantum properties, now maybe it's full of dark energy pushing
galaxies far from each other. If there was some way to push against it
that wouldn't surprise me at all.

Alfio