There is no magic per se in Armageddon Earth Online, but nanotechnology and powers of the human mind have evolved to the point that it is impossible to distinguish fact from fiction.
In AEO, each person is attuned to a certain degree to either the psychic arts or nanotech. From this attunement, further classification of the player evolves as they grow their powers in the world. For example, a nanotech attuned player may use the nano powers to extend their combat strengths. Another may use nanotech to alter the very elements of the Earth.
There are no classes in AEO, instead, the actions of players determine their lot in life. Some may stay grounded in the traditional laws of physics while others may seek an elevated alignment with quantum mechanics.