Why does he have to have built a working prototype. Not to speak for Sarfatti but he and his colleagues seem to have figured out the theoretical basis of the Tic Tacs physics. A low power warp drive using a very specific type of material. Fact is taking the Tic Tac performance into account as provided by Kevin Day on board the Princeton, the object dropped from 28,000 ft to sea level in 0.78 seconds. That's from a standing start to mach 60. The Russians aren't stupid, neither are the Chinese so if Sarfatti is right then the western world really needs to figure this out now.