White Hole

In the book, The Prism of Lyra, Lyssa Royal and Keith Priest use the term white hole for "an emergence point for consciousness and energy".

See also: black hole.

Here's what an AI had to say about them:

White holes are theoretical objects in physics—essentially the time-reversed counterparts of black holes. Here's what makes them fascinating:

The basic concept: While a black hole is a region where nothing can escape once it crosses the event horizon, a white hole would be a region where nothing can enter—matter and light can only come out. It's like watching a black hole in reverse.

The mathematics: White holes emerge as valid solutions to Einstein's field equations in general relativity, just like black holes. When physicists work through the math of spacetime curvature, white holes pop out as a mathematical possibility. They're connected to black holes through hypothetical structures called Einstein-Rosen bridges (wormholes).

The problem: Despite being mathematically possible, white holes face serious physical issues. They would be extraordinarily unstable and would likely violate the second law of thermodynamics. Even a single photon falling into a white hole from the outside could theoretically destroy it. This instability is why most physicists consider them purely theoretical curiosities rather than objects that could actually exist in our universe.

Speculative connections: Some physicists have proposed that the Big Bang itself might have been a white hole, or that black holes in our universe could be connected to white holes in other universes. Others have suggested that certain astrophysical phenomena we observe might be white holes, though these ideas remain highly speculative and lack observational support.

Unlike black holes, which we've now observed and photographed, white holes remain mathematical abstractions with no confirmed examples in nature.