Re: Warp drive possible?

Anders Sandberg (
23 Jun 1999 10:58:02 +0200

"Michael S. Lorrey" <> writes:

> So how would you generate these warp bubbles with no mass in them and
> propel them at FTL speeds? You will need some sort of warp drive inside
> the bubble, unless they are being generated by a transmitter, pumping
> them out like smoke rings. Would transmitted bubbles be a coherently
> pulsed collimated stream or would they disperse in a wide probablistic
> pattern? How would we here on earth receive bubbles transmitted by other
> worlds?

One paper that might answer some of your questions is

On the (im)possibility of warp bubbles

Authors: Chris Van Den Broeck
Comments: 5 pages, 2 figures; intended as a Comment for Class. Quantum Grav Report-no: KUL-TF-99/22

	I discuss the objections raised by several authors against
	Alcubierre's warp drive geometry. I argue that all of these
	objections may, in principle, be overcome, although important
	practical difficulties remain.

> We obviously need some of this exotic matter to do so, so did he
> publish any ideas on how to make this exotic matter?

Nobody really knows how to make exotic matter, it is just something that is possible in the equations. The closest thing is quantum effects like the Casimir effect.

Anders Sandberg                                      Towards Ascension!                  
GCS/M/S/O d++ -p+ c++++ !l u+ e++ m++ s+/+ n--- h+/* f+ g+ w++ t+ r+ !y