“旧版黑洞”像老式天文学教科书里的插图：一个无底的漩涡、吞噬一切的黑球。
早在18世纪，米切尔与拉普拉斯就提出“暗星”概念；1916年施瓦茨希尔德解给出临界半径，奠定了理论基础。
几十年间，黑洞在科学与科幻里以简化、戏剧化的形象流传——中心为不可知的奇点，周围是一道不可逾越的事件视界，外界物质被无情吸入。
这种“旧版”观念强调绝对的吞噬性与静态孤立性，便于传播与想象，但忽略了磁场、吸积盘、喷流等复杂动力学，以及量子效应的微小回响。
霍金辐射的提出、数值相对论的进步与事件视界望远镜的成像，共同把黑洞从神秘的“洞”转变为活跃的宇宙天体。
回望旧版黑洞，不只是怀旧；那是科学成长的刻痕。
旧有图像给予公众直观认知，也激发了早期研究和科幻创作。
而今天的黑洞既保留了那份神秘，也更为丰富与可观测。
理解旧版与新版的差异，有助于我们更谦逊地面对宇宙的未知。
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