Does the Past Still Exist?
推荐理由
This video by Sabine Hossenfelder explains it nicely
说明
这是2022年由Sabine Hossenfelder发布的一部讲解,主题归在Fundamental physics。它讲的是nature of time这一支里的具体问题,而不是把整个领域扫一遍。适合按兴趣直接看、不打算先补课的人。内容上可以概括成:Sabine Hossenfelder explains how special relativity leads to the block universe, in which past, present and future all exist equally, and asks what that means for whether the past still exists.这些读者给出的理由,核心是:HN commenters share it as a clear explanation of the block universe and relativity of simultaneity.讲法不绑某一条新闻,过几年仍然可以当材料看。从2022年到2023年,有1位不同的读者在1个不同月份把它推荐出来,其中明确叫别人去看的有0次。适合用一集把一个概念补上的人。抓住它用的那个图像或类比,比背公式重要。如果已经会了基本定义,就把注意力放在它怎么把nature of time变成能跟着复述的例子。
视频信息
- 频道
- Sabine Hossenfelder
- 时长
- 16 分 7 秒
- 发布年份
- 2022
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