To explain the passage of time, the ancient Greeks relied on two gods: Chronos and Kairos. While the former is represented as ruthless, like a clock that never stops, Kairos evoked the opportune moment for action. In other words, while Chronos is quantitative, Kairos has a qualitative and permanent nature. Indeed, humanity's relationship with the passage of time is not always an easy one.
Buildings are no different. In his seminal work The Seven Lamps of Architecture (1849), John Ruskin argued that only ruined buildings could preserve our past perceptions and, at the same time, allow us to confront our own mortality. In this sense, the marks of time and rubble were crucial witnesses to architectural aging, which, in his view, achieved an aesthetic somewhere between the sublime and the picturesque. Although this is a somewhat controversial perspective, the idea of considering how a building will endure over time has been gaining traction. It is well known that some materials age better than others: while a plastered white wall quickly shows cracks and stains, a stone wall seems to improve with age, blending into its surroundings, for example. Time brings new nuances, tells the story of what has passed, and lends authenticity to surfaces.
