，准时更新。  【阅读原文】  标题：‘A feedback loop with no brake ’: how an AI doomsday report shook US marketsShares in Uber, Mastercard and American Express fall on back of apocalypse scenario posted on Substack正文：US stock markets have been hit by a further wave of AI jitters, this time from yet another viral – and completely speculative – warning about the impact of the technology on the world’s largest economy. The latest foreboding is from Citrini Research, a littleknown US firm that provides insights on “transformative ‘megatrends’”. Its post on Substack, which it called a “scenario, not a prediction”,rattled investors by portraying a near future in which autonomous AI systems – or agents – upend the entire US economy, from jobs to markets and mortgages.知识点：jitters n. /ˈdʒɪtəz/feelings of nervousness or anxiety. 紧张不安；焦虑e.g. She always gets the jitters before giving a speech in front of the class. 她在全班面前演讲前总会感到紧张不安。获取外刊的完整原文以及精讲笔记，请关注微信公众号「早安英文」，回复“外刊”即可。更多有意思的英语干货等着你！  【节目介绍】  《早安英文-每日外刊精读》，带你精读最新外刊，了解国际最热事件：分析语法结构，拆解长难句，最接地气的翻译，还有重点词汇讲解。  所有选题均来自于《经济学人》《纽约时报》《华尔街日报》《华盛顿邮报》《大西洋月刊》《科学杂志》《国家地理》等国际一线外刊。  【适合谁听】  1、关注时事热点新闻，想要学习最新最潮流英文表达的英文学习者  2、任何想通过地道英文提高听、说、读、写能力的英文学习者  3、想快速掌握表达，有出国学习和旅游计划的英语爱好者  4、参加各类英语考试的应试者（如大学英语四六级、托福雅思、考研等）  【你将获得】  1、超过1000篇外刊精读课程，拓展丰富语言表达和文化背景  2、逐词、逐句精确讲解，系统掌握英语词汇、听力、阅读和语法  3、每期内附学习笔记，包含全文注释、长难句解析、疑难语法点等，帮助扫除阅读障碍。