translation.en: And so even though the universe will last forever, and ordinary matter and radiation will dilute away, there will always be some radiation, some thermal fluctuations, even in empty space.
translation.zh: 所以虽然宇宙是永恒的 而且一般的物质和辐射会被稀释 但某些辐射会永远留下 某些热涨落 即便那是真空区