How do you tell if two colours look the same?
数十年来，人类对“我们是否在宇宙中孤独”的追问从未停歇，而围绕不明飞行物（UFO），即如今所称“未解异常现象”（UAP）的争论亦持续升温，衍生出大量阴谋论与影视作品。 2024 年，美国一名前国防部官员在国会作证时甚至声称，政府雇员曾在与外星人接触中受伤，但这一说法并未得到实质性证据支持。 更早之前，前情报官员、曾负责分析 UAP 的大卫·格鲁什（David Grusch）也宣称五角大楼长期秘密回收并试图“逆向工程”坠毁的不明飞行器，引发舆论广泛关注。，详情可参考免实名服务器
The viewer-facing edges in the XY plane are exactly the same length as the z edge; nevertheless, it’s hard to shake the impression that the dimensions are off and the cube is stretched.，更多细节参见谷歌
Doctors suspected she had glioblastoma, a fast-growing brain tumour, and she could have just two years to live if it was aggressive.，更多细节参见超级权重