Recursive function space: exploring meta-cognitive scenery via HMD

Recursive Function Space (RFS) is a virtual reality based interactive contents that prominently explores and activates a meta-cognitive function in our human cognition system. RFS consists of four (RFS 1.0) or six (RFS 2.0) clones of the player (HMD wearer), characterized in a distinctive perspective transition among these clones that gives an out-of-body-like experience of seeing oneself, how one looks at oneself, and how one is looked by oneself. This is done with the HMD technology (VIVE), where pulling a lever of the left/right controller enables the player to take the perspective of the left/right hand of HMD wearer. The player can also take the perspective from the right hand of "left hand clone" or that from the "meta-clone" owning the HMD wearer at its left hand clone. Such a recursive exploration of the multiple perspectives is systematically associated with Homunculus' infinite regress discussed in the context of "hard problem of consciousness." Thus, RFS embodies a classically universal question concerning the origin of the subject with an up-to-date HMD technology.