dissipvism
Dissipvism is a speculative philosophical concept that explores the idea of a universe or reality that intentionally dissipates or dissolves over time. Unlike theories of cosmic expansion or heat death, which describe a natural thermodynamic process, dissipvism posits an active, perhaps even intentional, force or principle driving this dissolution. It suggests that the fundamental nature of existence might be to eventually cease to be, not through decay or collapse, but through a deliberate unmaking.
The core tenets of dissipvism can vary, but generally include the belief that the universe is not
The concept draws on themes found in existentialism, nihilism, and certain Eastern philosophies that emphasize impermanence.