People's memories were subconscious. Even if they had forgotten something because of external factors, they still had a chance to retrieve it.
Just like how some people could selectively lose their memories, there were also people who lost their memories due to brain stimulation or injury. After treatment or over time, they would recover.
Phoenix Si's condition was undoubtedly due to her amnesia due to hypnosis, and part of it was due to her self-escape mentality. However, as her physical fitness got better and better, her ability became stronger and stronger. When she encountered certain stimulation, she would regain her past memories.
Phoenix Si more or less knew that his memories should have mostly recovered. The only thing left was his experience in creating a god.
