A term used in the tech industry.
Refers to the moment when additional investment in upgrades no longer makes up for the outdated fundamental underpinnings, and the product is allowed to die a natural death without further intervention.
Metaphorically, also applies to things like ideologies, relationships, and human beings. Indicates it is time to greenbox the old stuff and start over.
It should be noted, however, there is a small but devoted market for this discarded material within certain circles of the salvage culture for those things that have outlived their era.
The Amish, for instance, still use horses to great effect.