Faurai Rainui

Faurai Felei Rainui ( /fauːɾai ɾajnūːi/, 1998-2064 ) was a Feguan astrophysicist and mathematician renowned for his works on spacetime topologies, and the Kerr-Rainui metric, a generalization of the Kerr metric in toroidal space. His contributions also included computational models for the analysis of gravity assists, which were employed in the Ta'atearoa Program, and a 5-dimension interpretation of a Kerr wormhole pair later known as the Rainui Conjecture, which granted him his second Nobel prize in 2063. He devoted his life to his research, university teaching, and contributions to the Feguan Space Program.

Faurai Rainui Astrophysicist, leader of FAITO Aerospace
Faurai Rainui, as seen in 2056 before a Ta'atearoa first stage.
Director-General of FAITO Aerospace
In Office
2049 - 2064
Preceded by		Maliki Tao
Succeeded by		Tama Rainui
Personal Details
Born		October 3rd, 1998 Fenua-ite-Upo'o, Fegeland
Died		June 21th, 2064 Vaimarata, Fegeland
Nationality		Feguan
Cause of Death		Suicide
Nicknames		The Singularity Sorcerer

Biography

Early life and background

Rainui was born in 1998 in Fenua-ite-Upo'o, a small coastal village near Pihiro Cape, Fegeland. His family was of modest origin, his father officiated as the village's doctor, his mother tending to the house and family cattle. His father, Raumafatu Rainui, had studied medical science at the University of Pihiro, before enlisting in the Feguan Navy. At the age of 37, he left the Navy to open his own doctor's office in his childhood municipality, Pihiro Cape. His mother, Poeani Fereite, born of a family of carpenters and fishermen, suffered a harsh youth in Pihiro, before graduating as a Feguan litterature and linguistics teacher at the University of Pihiro, where she first met Raumafatu Rainui. Both natives from Fenua-ite-Upo'o, they married in the year 1998, shortly before Faurai Rainui's birth. The Rainui family had 3 children, of which Faurai was the elder.

Faurai Rainui attended public primary schooling in Pihiro, where he recalled "having trouble bonding with his classmates" due to his early interest in sciences. He would find a refuge from the turmoils of his school life and family disputes in the municipal library, managed by his aunt. His childhood was otherwise ordinary, only marked by his above-average results and poor social skills. Rainui obtained his BSS (Baccalaureate of Secondary Studies) with honors at the St. Laitea Private High-school and applied to the Pihiruan Institute of Electronics and Engineering, a reputed engineering college. His debuts were however mixed, as he did not find himself compelled by the domain of electronic engineering. Despite positive appreciations from his professors, Rainui resigned shortly into his second semester of his second year, believing that "there was not [his] true destiny, nonetheless a significant milestone in [his] journey".

University and thesis

After working for a local TV repair shop in Pihiro for a summer, Rainui enlisted on the Huturoa Excellency Scholarship program, a funding program operated by the University of Huturoa to attract meritorious mainland students to the island-state. He had spent the best of his time since his resignation at the PIEE preparing the entry exam to the Huturoa Excellency Scholarship program, a time that he recalls "being of the most fruitious in [his] intellectual career". He quotes:

It was in this somewhat mundane repair shop that I spent some of my most industrious days as a young silly head governed by the appetizing mysteries of our universe, and the most lonesome and dire evenings when studying the vapid topics of Economics or Literature. It was, for the Letters, only in History that my mind was able to find fruit to an appetite for the occult. Of the most remarkable individuals I met in my career were two other undergrads working there in this summer of 2019. One was to me an apparent mystery of Nature in his baffling ability to understand at a glance the works of apparently any electronic device that the tenant would throw at his grasp ; his name was Paoa Kahanamoku, a name that I would remember for his elder son, Johan, whom would pursue his PhD under my direction many years later. The other was no less than Rai Maevarau, future Minister of Space and prominent sponsor of the Ta'atearoa Program. It is to him that I owe my recent position at the head of FAITO. A fit reminder of my great-aunt's favorite quote - sometimes a good counter is worth any big title.

Admitted with honors at the University of Huturoa, Rainui there studied physics and mathematics, majoring in Astrophysics and Applied Mathematics, before pursuing a PhD in Astrophysics. Despite being admitted in 2020, he was allowed to join third year classes immediately, on account of his previous years at PIEE and his results at the entry exam, allowing him to graduate with a Bachelor of Physics by the year 2022. He conducted his thesis under the direction of Pr. Shin Tokare, studying 5D brane topologies in relation to Einstein's general relativity and the MWI interpretation of quantum physics. Despite not producing a solution that would conciliate both models, his work served as a substantial foundation for his later work on the Kerr-Rainui metric and the Rainui Conjecture. He defended his PhD thesis with honors in 2026, receiving the title of Doctor es Astrophysics, and a position of titular professor at the University of Huturoa.

Career

Rainui is often considered as one of the most prolific heads in the recent Feguan scientific history. His contributions to the field of Theoretical Physics quickly caught the attention of his peers, and his first Nobel prize granted him public recognition. Although being reluctant towards the media and public attention, he made numerous media appearances in the early 40s, participating in public congresses and vulgarization shows. His background as a Professor helped building the well-known charismatic figure that fascinated physics enthusiasts throughout Fegeland, and later led him to the direction of FAITO Aerospace.

Research

Rainui's contributions begins with his PhD thesis at the University of Huturoa, which he defended in 2026, at the age of 28. Conducted under the direction of Pr. Shin Tokare, himself an esteemed theoretical physicist, Rainui's thesis studied the theoretical plausibility of a 5-dimensional brane topology as an attempt to unite the Many Worlds Interpretation of quantum physics and Einstein's General Relativity. His research was part of the search for a hypothetical Theory of Everything that would unite classical relativistic physics and quantum mechanics. Rainui's theory predicted the existence of a fifth dimension orthogonal to the existing four dimensions of spacetime, and related several fundamental coupling constants of classical physics to a more general coupling between this hypothetical dimension and matter in the universe. Despite not producing concluding results, his thesis led to the discovery of the Tokare-Rainui manifolds, a class of 5-dimensional manifold that are topologically toroidal along two dimensions, that Tokare regarded as "the most important bricks of [their] careers". Rainui's initial intuition of conjecturing the topology of the Universe as a tore was criticized by his peers, an idea that he later came to refute with his discovery of the 1-3TR and 2-3TR Tokare-Rainui manifolds. Rainui proved that such manifolds could be used to describe branes that exhibit properties comparable to our universe, albeit while violating the mass-energy equivalence. This model, nicknamed "Rainui's God Hand" (RGH) provides an elegant solution for dark energy as the manifestation of energy from adjacent branes in a Tokare-Rainui manifold, commonly vulgarized as the hypothetical influence of "neighboring parallel universes" on our own universe. However, observations shows that energy distribution throughout the universe is greatly heterogeneous, whereas dark energy density is thought to be homogeneous, hinting that the effect of neighboring branes in the RGH model must be heterogeneous, and as such that dark energy within our universe should be heterogeneously dispersed. Such a claim has been refuted by notable peers, although the model as a whole is considered by many as a nonetheless promising track.

The Kerr-Rainui Metric

The Kerr-Rainui metric is a generalization of the Kerr metric in toroidal space. It describes the geometry of a Kerr black hole in a toroidal universe. A Kerr-Rainui black hole's internal space region would, in such a topology, rejoin the external space region, allowing an observer traversing both event horizons to emerge at a different position or time depending on its trajectory within the black hole. The Penrose diagram of such a black hole connects the inner and outer horizons such as the trajectory of a particle exiting the inner horizon (or antihorizon) is continued in the outside space, therefore making no distinction between an "inside" and an "outside" space. Kerr-Rainui black holes therefore eliminates the need for extra universes, at the expense of predicting the existence of white holes in the universe, which have never been observed. It is assumed that the inside region of a Kerr black hole is largely unstable, a quality that is also shared by the Kerr-Rainui black hole and would require such wormholes to be inherently short-lived. Rainui proposed that such wormholes could be naturally formed and destroyed as an explication for gamma-ray bursts.