I Reincarnated as the Ancient Philosopher's Stone!?

Blake, a grad student in psychology, is killed by the Heavens to maintain the balance of the multiverse. To ensure that no civilization can take advantage of another through the dimensional veil, he, like so many before him, is chosen by the Counsel to either go forward or backward in time. Going forward guarantees a life of obscurity and bliss, whereas going back allows one power and adventure. An error occurs during his selection, and he is sent back to the past at the maximum value, 4.54 billion years! Organic lifeforms cannot survive in such extreme conditions, so the system is forced to choose the most common object of the era, a rock. Watch our poor hero become the most mythical stone of legend, the Philosophers Stone from the most humble origins!