I have a little brother, eight years younger than me. He gave himself an English name called Apollo, which I thought a bit strange and funny, but he said the name came from Apollo the Moon Landing mission, and he thought it was cool.
After I left for the United States, we didn’t have much chance to be that close, but we are still doing online meetings. I coached him on math Olympiad for the past few weeks, and I think he liked it!