Ross Tessien wrote this interesting comment to vortex...
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This no doubt does not allow that the "stuff" of spacetime ahead of the
craft could be condensed out of the way of the craft, freeing it to move
through a vortex in the ocean of the quantum vacuum. ie, by firing a
spray of intense energy forward, you should be able to condense matter
ahead of the craft into "virtual particles", where virtual simply means
short lived.
Then, the craft passes through that region, and behind the craft the
virtual particle vaporize back into aether buoying up the pressure of
the aether and creating a pressure wave behind the craft which the craft
can then ride forward.
For FTL travel, it isn't important any more to launch stuff backward to
accelerate. Instead, it becomes important to condense the stuff ahead
of you out of your way by forming a vortex like a smoke ring around the
craft.
Ross Tessien
-- Jerry W. Decker / jdecker@keelynet.com http://keelynet.com / "From an Art to a Science" Voice : (214) 324-8741 / FAX : (214) 324-3501 KeelyNet - PO BOX 870716 - Mesquite - Republic of Texas - 75187