Geminoids

Like twins, geminoids are brothers that not only look the same, but also move the same, sometimes walk or talk at the same time. They know instantly what the other is thinking and can predict with pinpoint accuracy its pair's movements.

There have been few experimentation on this phenomena, all though geminoids have been reported on all sapient species, and even plants.

Many academics believe their conception to be the result of the joining of two realities, this means that when two realities by chance synchronize, their threads merge together forming a single new thread. The geminoids that were conceived in that instance would have had a spark of afterthought (ideas and thought being foreign to reality itself), this change is so faint that it causes them to un-merge producing two bodies instead of one.

All geminoids are believed to have only one secret difference that explains why the need for two bodies instead of reality merging into a single soul as normal. Damage to a geminoid is also reflected on its pair in some lesser form, even if they are far apart or in different planes of existence.

Death of one geminoid always results by the death of the other, as does long term separation.