Mass tells spacetime how to curve.
Curved spacetime tells mass how to move.
Einstein, 1915 — General Theory of Relativity
Every body continues in its state of rest, or of uniform motion in a straight line, unless it is compelled to change that state.
Light climbing out of a gravity well loses energy. Its wavelength stretches. Colors shift toward red. Time itself runs slower near massive objects — a clock on the surface of a neutron star ticks at a fraction of the speed of a clock in deep space.
This is not an illusion. The slowing is real, measurable, absolute. GPS satellites must account for it or their positions drift by kilometers per day.
Light falling into a gravity well gains energy. Its wavelength compresses. Colors shift toward blue. An observer at the bottom of the well sees the universe above them accelerated, blue-tinged, frenetic — time rushing past.
The deeper you fall, the faster the universe above you seems to move. At the event horizon, an eternity passes in an instant.
The distinction between past, present, and future is only a stubbornly persistent illusion.
Beyond this boundary, nothing escapes. Not light, not information, not time itself. The event horizon is not a surface — it is a moment. The moment when falling becomes irreversible.
Beyond this boundary, nothing escapes. Not light, not information, not time itself. The event horizon is not a surface — it is a moment. The moment when falling becomes irreversible.
The universe is under no obligation to make sense to you.