Equation 2 · Part 1 · A Horizon Is a Toll Booth, Not a Loophole
Symbol t
What this part means
t is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Its job in the formula
t is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Full expression→Symbol t→Article meaning
The passage around this formula
…altitude near a black hole’s horizon runs slow. Not metaphorically: its proper time , the time its own internal clock and its own quantum gates actually tick through, elapses more slowly than the coordinate time t used by a bookkeeper stationed far away, by the ordinary gravitational redshift factor . A distant observer watching that processor through a telescope sees every one of its gates run in slow motion. Turn the statement around, though, and something more interesting appears to fall…
Learn the underlying idea
A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.
Open the illustrated variables: a letter stands for a value guide →
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