Spacetime Bubble
A generic term for a localized region of spacetime that is topologically or causally distinct from its exterior—often used interchangeably with “warp bubble” in FTL theory. A spacetime bubble can be formed by extreme gravitational fields, exotic matter, or advanced metric engineering. Inside the bubble, the usual relationships between space and time may be altered: distances can be shortened, time can run at different rates, or the bubble can move independently of the surrounding universe. The concept is central to most theoretical FTL drive proposals, as well as to speculative “pocket universe” or “domain wall” physics.
Example: “The anomaly was a natural spacetime bubble, a remnant of the early universe where for millennia, only a few seconds had passed.”
Spacetime Bubble by Dumu The Void April 25, 2026
