Gauge theory 2
Gauge symmetries can be viewed as analogues of the equivalence principle of general relativity in which each point in spacetime is allowed a choice of local reference (coordinate) frame. Both symmetries reflect a redundancy in the description of a system.
— Wikipedia on Gauge theory
2011.01.31 Monday ACHK
自我虛級化 7
The history of ideas is a history of gradually discarding the assumption that it’s all about us. No, it turns out, the earth is not the center of the universe — not even the center of the solar system. No, it turns out, humans are not created by God in his own image; they’re just one species among many, descended not merely from apes, but from microorganisms. Even the concept of “me” turns out to be fuzzy around the edges if you examine it closely.
Conversely, if you have to choose between two theories, prefer the one that doesn’t center on you. This principle isn’t only for big ideas. It works in everyday life, too.
— Paul Graham
2011.01.31 Monday ACHK
裝甲化成身體
— Me@2010.10.31
2011.01.31 Monday (c) All rights reserved by ACHK
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Reboot
With the financial and critical success of The Dark Knight, Warners said of the reboot Superman film, “We’re going to try to go dark to the extent that the character allows it.” Legendary Pictures president Thomas Tull added that “Superman needs a powerful antagonist, a worthy opponent,” wanting to evoke Superman as an “angry God”.
Paul Levitz stated in an interview that Batman holds the key to the Superman reboot. He elaborated, “Everyone is waiting for Nolan to sign on for another Batman, once that happens, the release date for Superman and all other future projects will follow.”
— Wikipedia on Superman (film series)
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2011.01.31 Monday ACHK
沒有因果關係的東西，就不能標籤為「不同時間」的「同一樣東西」。例如，你不能說，「愛因斯坦」是「2010 安」的「過去」，因為「愛因斯坦」的存在，並不是「2010 安」存在的先決條件。
你明不明白我的意思？
（安：我明白。但是，我正在想，究竟我的（例如）「十時三十分」和你的「十時三十分」，算不算是同一個標籤呢？）
你突然轉換了話題，令我不知如何答你 …
（安：但是，「時間」除了你剛才所講，利用「變化」來解釋為何同一個名字所標籤東西，會有不同之外，還有另外的一些方面。）
無錯。但是，我剛才所描述的，是「個體時間」或者「主觀時間」。而你所問的，是「整體時間」或者「客觀時間」。所以我說，你突然轉換了話題。
— Me@2011.01.31
2011.01.31 Monday (c) All rights reserved by ACHK
Physics Town 