James Bond
The Bond franchise has persisted since 1962, an impressive six decades of continuous cultural production. Survival through changing tastes, studio politics, and actor transitions demonstrates remarkable institutional resilience. Projections suggest continued viability for the foreseeable future.
However, Bond's longevity depends upon continued human interest in espionage narratives and the commercial viability of theatrical releases. Neither is guaranteed in perpetuity.
Monday
Monday's existence predates recorded history. The seven-day week emerged from Babylonian astronomy approximately 4,000 years ago, and the designation of a first working day followed naturally. Monday has outlasted empires, religions, and countless cultural movements.
Unlike Bond, whose continuation requires active effort and investment, Monday requires only that humanity continue organising time into weeks. Given the deep structural embedding of this system, Monday's longevity appears essentially unlimited.