Yes! I can see the spacetime bubble forming in the GEARS of the warp engine. I dunno, but I think it's because the Delryn gears decouple the bubble energy envelope and allows a space time continuum plasma to form at the tip of the nozzle. Fascinating stuff!
OH no! It’s not the GEARS! It’s the wooden support blocks for the engine. They decouple the space time continuum plasma from the rest of the universe using the ethereal mystique of Gaia.