Multiverse

Multiverses take up their own massive contained areas in megaspace, containing their own predetermined laws of physics and properties.

Formation
Megaspace is constantly bombarded by cosmic storms from the particles that compose reality, which is part of why the environment is extremely difficult to inhabit permanently. If these storms collect and come together in just the right formation, a multiverse can start to form as these particles combine themselves together and form the laws of physics for the young multiverse. These early stages are highly volatile, however, and in many cases either no physics are properly formed or they are formed in a self-destructive fashion. Many multiverses never form properly, either falling apart due to failing to form physics or eventually decaying under the weight of their unsustainable laws.

If a multiverse successfully manages to avoid collapsing and forms cohesive physics, it will slowly start to expand and take shape according to the laws it has created. These primitive multiverses start to develop their own inhabitants. Eventually, it will grow to a fitting size and start to settle, which is when advanced societies inside of them can begin to form.

Multiverses and Dimensions
Although the individuals on the net and from this multiverse use the system of dimensions to measure things, dimensions are not necessarily a vital aspect of multiverses. There are some that have vastly different timeline structures, their own local time, and no timelines whatsoever to name a few. While dimensional measurement works for the purposes of the nets framework, it is not exactly an accurate model in of itself when taking into account how reality functions.