https://www.amazon.com/-/zh_TW/Carlo-Rovelli-ebook/dp/B08LR73RTL/ref=mp_s_a_1_1?crid=14NM1GZI2I1MB&keywords=helgoland&qid=1667360124&qu=eyJxc2MiOiIyLjM2IiwicXNhIjoiMS45NiIsInFzcCI6IjIuMDEifQ%3D%3D&sprefix=helgoland%2Caps%2C570&sr=8-1
“Relational interpretation“ of quantum physics, is intersubjectivity, and two-person psychology.
See “Enriching psychoanalysis“, pp. 34-37.