Wei was no longer in the mood for talking, but Einstein's Keya patiently explained to Lu Yuanming, "This is actually similar to the technology devices we use. Take warships, no, take any ordinary household appliance as an example. Can this appliance function without being connected to a power source, without plugging it in?"
Lu Yuanming shook his head and said, "Naturally, that would be impossible. Wouldn't that be like a haunting?"
Einstein's Keya asked again, "But aren't there free electrons in the void? If all else fails, there's the zero-point energy of the vacuum. Why can't the appliance use that energy?"
Lu Yuanming opened his mouth, then said nothing, thoughtful, seemingly understanding Wei and Einstein's Keya's point.
Psychics are not like vacuum energy extractors that can make use of psychic energy with just a single unit of dark matter; instead, they're more like household appliances that require a sufficient concentration of dark matter to harness psychic energy.