the.com/unknowable

The horizon that retreats one step for every step you take toward it.

means Incapable of being known or fully understood, whether in practice or in principle.

from A transparent build from English: the negative prefix 'un-' fastened to 'knowable,' itself 'know' plus '-able.' 'Know' descends from Old English 'cnāwan,' a deep Germanic root that is also a cousin of Latin 'cognoscere' (to recognize) and Greek 'gignōskein' — the same family tree that gives us 'cognition' and 'gnosis.' The '-able' suffix arrived through Old French from Latin '-abilis,' meaning 'capable of.' So the word literally stacks up as 'not-able-to-be-known' — a small monument built entirely from the act, and the limit, of knowing.

math limit
Godel proved some truths can never be proven
physics wall
Heisenberg forbids knowing position and momentum exactly
black holes
Event horizons hide information forever from outside
halting problem
No program can predict if all programs stop
ancient apophatic
Mystics defined God only by what he isn't
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