Lateral reincarnation

Lateral reincarnation, also known as horizonal reincarnation, as opposed to vertical reincarnation, is where you reincarnate as yourself. This might include the infinite loop theory (you always stay the same, you never change) or the matrix of perfection theory (you improve progressively over numerous iterations).

Differences to vertical reincarnation
Vertical reincarnation is where you reincarnate as someone else, usually into a different body and later timeline (as though one is climbing up a ladder), where-as horizonal is where you reincarnate as yourself, as though climbing sideways.

Implications of horizonal reincarnation
The implications of horizonal reincarnation are many and varied, for example, being forced to relive the same life with the same mistakes over and over again (of which deja vu and fragments of memory are a proposed symptom), or being allowed to personally improve and progress (matrix of perfection ), to alternate personal universe theory, to even being forced to relive it in order to complete specific goals and objectives.