Final answer:
According to Maimonides, the change of genesis and destruction is a change in substance, meaning that the essence of the entity endures despite changes in incidental features. Substances can undergo changes in their fundamental nature, such as their essence or identity, while still retaining their essential existence.
Step-by-step explanation:
According to Maimonides, the change of genesis and destruction is a change in substance. The Latin term substantia, translated as "substance," refers to the basic reality or essence of a thing that supports or stands under features that are incidental to the substance itself. While the incidental features like quantity, time, and place can change, the essence of the entity endures. Maimonides believed that substances can undergo changes in their fundamental nature, such as their essence or identity, while still retaining their essential existence.