{"resolved":true,"match_type":"uuid","source_type":"original_book","book_id":"396e1bee-219e-4bee-9884-3214c17ff8f5","title":"人工智能时代：破解人机共存密码（套装共10册）","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787521719512","requested_by":"printed_page","book":{"source_type":"original_book","book_id":"396e1bee-219e-4bee-9884-3214c17ff8f5","id":"396e1bee-219e-4bee-9884-3214c17ff8f5","uuid":"396e1bee-219e-4bee-9884-3214c17ff8f5","title":"人工智能时代：破解人机共存密码（套装共10册）","normalized_title":"人工智能时代破解人机共存密码套装共10册","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787521719512","isbns":["9787521719512","9787521709957","9787508685670","9787521713794","9787521703320","9787508698359","9787508673219","9787521713176","9787508668673"],"parsed":true,"ai_readable":true,"document_type":"book","page_count":3314,"navigation_url":"https://workshop.closeclaw.top/ai/book/396e1bee-219e-4bee-9884-3214c17ff8f5","title_url":"https://workshop.closeclaw.top/ai/title/%E4%BA%BA%E5%B7%A5%E6%99%BA%E8%83%BD%E6%97%B6%E4%BB%A3%EF%BC%9A%E7%A0%B4%E8%A7%A3%E4%BA%BA%E6%9C%BA%E5%85%B1%E5%AD%98%E5%AF%86%E7%A0%81%EF%BC%88%E5%A5%97%E8%A3%85%E5%85%B110%E5%86%8C%EF%BC%89","fixed_page_url_template":"https://workshop.closeclaw.top/ai/book/396e1bee-219e-4bee-9884-3214c17ff8f5/page/{printed_page}","path_api_url_template":"https://workshop.closeclaw.top/api/ai/book/396e1bee-219e-4bee-9884-3214c17ff8f5/page/{printed_page}","read_url":"https://workshop.closeclaw.top/api/ai/read/396e1bee-219e-4bee-9884-3214c17ff8f5","page_url":"https://workshop.closeclaw.top/api/ai/books/396e1bee-219e-4bee-9884-3214c17ff8f5/page","search_url":"https://workshop.closeclaw.top/api/ai/books/396e1bee-219e-4bee-9884-3214c17ff8f5/search"},"page":{"printed_page":17,"pdf_page":2242,"physical_index":2242,"physical_index_base":0,"printed_page_status":"recognized","page_sha256":"a2773943a0a7bb4c433f2eeb3de38b7d12baa6e10b66a1b44dc6dd89c1a925dc"},"chapter":"第6章 未来的现实","content":"进化的力量\n\n研究生命起源的莱斯利·奥格尔（Leslie Orgel，图17–1，右）是一位毕业于牛津大学的化学家，他是我在索尔克研究所多年的同事，也是我见过的最聪明的科学家之一。每周五的教师午餐时与他的讨论总是让我意犹未尽。生命的起源可以追溯到数十亿年前，众所周知，那时的地球与今天大不相同，环境条件十分苛刻，大气中的氧气很少，并不适宜生命存活。古细菌早于细菌出现在地球上，但在古细菌之前出现的又是什么呢？我们现在已经知道，DNA普遍存在于所有细胞中，那在DNA形成之前就存在的遗传物质又是什么呢？1968年，莱斯利·奥格尔和弗朗西斯·克里克推测，由细胞中的DNA衍生而来的RNA可能是DNA的前身，但这就要求RNA能够自我复制。关于这一推测的证据，来自可以催化RNA反应的基于RNA酶的核酶<sup>[1]</sup>（ribozyme）。今天该领域的大多数研究人员都认为，所有生命都来自早期的“RNA世界”，这一点是完全有可能的。但RNA又是从哪里来的呢？遗憾的是，我们并没有什么证据可以继续追溯下去。\n\n17","previous_page":16,"next_page":18}