Also known as Time Wells or Time Crystals.
A type of specialized Crystal Strand Pool that is an infinitely looping paradox that has no seemingly way out. It appears whenever Strand fractures time through an unresolvable causality of events. They are highly dangerous objects that can permanently trap any Spellweaver for the feeling of an eternity.
They usually resolve by removing the Strand Pool at its center that is causing the Probability Amplitudes to fold upon themselves. For example, a Time Bubble is if a Strand user goes to the past to kill their grandfather, it becomes a paradox because without grandfather then his father can't be born, and if their father isn't born then they themselves shouldn't exist. It allows for paradoxes that require the object to start it to be already existing with itself.
A common misconception of a Time Bubble is in the Ages X onwards, where there is a misguided perception that the formation of the Proto-Universe and Known Universe happened due to the Original Ripple and it all began with a theory between two scholars during Ages VIII when they studied the gravity properties of Void and its limitations:
If we're in a finite universe and all the stars in Cosmic Motion attract each other together, would they not all collapse to a singular point, and if we're in an infinite universe with infinite stars, would infinite forces in every direction not affect all of those stars? How is that any different from a Time Bubble.
The theory of this Time Bubble cyclic universe emerges from believing that the Known Universe began with a loud Original Ripple, but the source of the ripple exists within itself when the Known Universe retracts and create both a big crunch, and a big bounce which results in another Original Ripple. By that logic, it would mean that the universe itself is a Time Bubble but it ignores the reality of The Infinite Void not being bound by the Trinity Harmony as that is a construct built by the Auric Aria from outside of the Coherence of time.
The Looping Paradox is the Primal Discordia of Obsessian that heavily weaponizes the idea of Time Bubbles by using them as the infinite "backrooms" where it traps the victims through a complex layering of Triad Chords of Void, Luminance, Resonance, and the anchor of stabilized Strand through a Crystal Strand Pool (Flux + Crystal + Strand). It feeds on the victims despair of being stuck in a confine in time outside the perception of the real Arcanoria, delaying time, and waiting until the victims fall to despair and merging the newform of the Atonalis as the entities roaming its Time Bubble infinite rooms. It kidnaps Spellweavers to make them "props" of its own hallucinations.