I am Sihan Ji, and my English name is Thomas. My high school is the international department of Affiliated High School of South China University(HFI). I will graduate from HFI in 2026. I am from Guangzhou, a beautiful city in the South of China with lots of amazing food. I love exploring unknown things, especially related to the universe, such as Quantum immortality, spacetime, and higher dimensions. I also love working out, and I have kept working out for three years.