Bathurst is the main villain of Infinite and represents the nihilists of these eternal people who are tired of being reincarnated and remembering each of their lives.
In other words, this can become really messed up.
After being a good infinite for tons of lifetimes, for the last 300 years Bathurst has been looking for a way out from civilization and to find a way to stop reincarnating.
In one scene, Chiwetel Ejiofor’s character shares how his “infinite” power has grown so much over the years that when he is reincarnated, all his memories come back while he is in the womb and he is a fully conscious man of many lives stuck in a tight space for months upon end.