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There was no prolonged lingering; Su Han came back from Bai Qilan's place with some additional materials and then returned to his room on Summer Garden Avenue.
At Summer Garden Mall, Su Han looked through the materials and discovered that they contained conjectures about Spiritual Energy, Talent, the human body, and so on, which represented the current understanding of these fields.
It couldn't be said to be absolutely correct or entirely without error, but it was certainly one of the latest versions humanity had come up with.
There was also a book about meditation from before the apocalypse.
Bai Qilan, based on her research and current findings, tentatively classified Talents into two categories. One category was the perception type like hers, focusing on perception, spirit, and other aspects.
