What Do You Call A Cycle That Never Ends?

What Do You Call A Cycle That Never Ends? boundless, ceaseless, constant, continual, continuous, eternal, everlasting, incessant, interminable, nonstop, perpetual, persistent, relentless, unbroken, unceasing, unchanging, uninterrupted, unremitting. Is a cycle never ending? In fact, there is the same amount of water on earth today as there was in the time of dinosaurs! In the water