Quantum decay delves into the interpretation of decay across both microscopic (quantum) and macroscopic scales (daily life). Interestingly, in the realm of quantum mechanics, decay takes on a discrete nature. For example, in quantum space, the decay of an atom occurs not gradually but rather at a random moment, challenging our intuition. This aspect prompts a reevaluation of the preconceived notion of an 'ideal' status, urging us to separate it from our prior knowledge and experiences. Moreover, instead of organizing events strictly by the order of time, we aim to introduce a new framework for understanding the world. This framework draws inspiration from general relativity, suggesting that time and space should be defined by events rather than the other way around. This shift in perspective encourages a deeper exploration of the fundamental nature of decay and its implications across various scales of existence.

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In this part, the setup comprises a dynamic 3D box populated with particles undergoing decay. We create a set of realistic numerical simulations of the decay of particles in 3D boxes, following the exponential decaying law. Within the same box, we also showcase the structure formation in the universe, which can be rendered as decay with special aesthetic treatment. This intriguing parallel between formation and destruction in universal evolution is presented as a significant aspect of decay.

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Participants can navigate freely around the box, observing various types of decay in action. They have the flexibility to zoom in and out, allowing them to witness decay processes at different scales. Moreover, by focusing on different regions of the 3D box, participants can experience shifts in the flow of time, offering a nuanced understanding of temporal dynamics. Additionally, participants can actively engage with the decay process. They can experiment with altering decay parameters, introducing interference, and even manipulating time by rearranging events within the environment.