Author Archives: rpflee

Definite

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Universal wave function, 14

Quantum decoherence makes the macroscopic world appear definite.

In fact, Nature is fundamentally a superposition of definite states.

So the world, either microscopic or macroscopic, is definite in a sense that the universal wave function is evolving deterministically; and

is indefinite in a sense that it is not in a particular eigenstate.

— Me@2011.11.19

2012.02.27 Monday (c) All rights reserved by ACHK

John T. Reed

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Pursuit of money, fame, and status generally does not produce a bumper crop of friends and friendly relatives in old age. Indeed, those goals are selfish and selfishness is not a way to make friends. Furthermore, money, fame, and status tend to attract false friends which may get in the way of your acquiring [of] real ones.

— John T. Reed

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2012.02.26 Sunday ACHK

Enjoy everything, need nothing, 2.1

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種子論起點 12.2

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有心栽花花不香，無心插柳柳成蔭。當你「需要」一樣東西時，你就會失去它。

（安：什麼意思？）

例如，當你「需要」你的女朋友和你在一起時，你就會失去她。

如果你和女朋友在一起，是因為你「需要」她的話，你就再不是出於自由意志，因為喜歡見到她，而和她在一起。由於害怕失去她，你會在日常的相處中，極端遷就。那樣，這段關係，再也不是一段平等的關係，再不可以坦白對話、真誠交往。這段關係逐漸瓦解。

— Me@2012.02.26

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2012.02.26 Sunday (c) All rights reserved by ACHK

Everett’s relative-state formulation

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Universal wave function, 13

Everett noticed that the unitary, deterministic dynamics alone decreed that after an observation is made each element of the quantum superposition of the combined subject-object wavefunction contains two “relative states”: a “collapsed” object state and an associated observer who has observed the same collapsed outcome; what the observer sees and the state of the object have become correlated by the act of measurement or observation. The subsequent evolution of each pair of relative subject-object states proceeds with complete indifference as to the presence or absence of the other elements, as if wavefunction collapse has occurred, which has the consequence that later observations are always consistent with the earlier observations. Thus the appearance of the object’s wavefunction’s collapse has emerged from the unitary, deterministic theory itself. (This answered Einstein’s early criticism of quantum theory, that the theory should define what is observed, not for the observables to define the theory). Since the wavefunction appears to have collapsed then, Everett reasoned, there was no need to actually assume that it had collapsed. And so, invoking Occam’s razor, he removed the postulate of wavefunction collapse from the theory.

— Wikipedia on Everett’s relative-state formulation

2012.02.26 Sunday ACHK

Single-world interpretation, 6.5

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If this is the case, then wave function is deterministic. There is no free will. The free will is due to the ongoing superposition of eigenstates. Locally, we see superposition of “a and b” collapse to (such as) a. Globally, we also see b “goes to” the environment. Nothing is lost in a sense that no information is lost.

Then what happens when you make a choice by collapsing a wave function?

Free will, like wave function collapse, is a local illusion.

Since information cannot be lost, we always exist.

— Me@2011.11.20

2012.02.25 Saturday (c) All rights reserved by ACHK

Meta-teacher

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Meta 1.2 | Recursion 9.2

如何拯救眾生 3

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Now, the common paradigm is that the teacher-student ratio is critical — fewer students means higher-quality teaching. But if you turn your students into teachers, you gain leverage. You move the fulcrum over.

– The 8th Habit p. 32, by Stephen Covey

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2008.10.24 Friday ACHK

種子論起點 11.0.2

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這段改編自 2010 年 3 月 20 日的對話。

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我們暫時叫它做「種子論」吧！

大概而言，你需要不斷散播種子，但又不知道哪些會發芽。你幾乎完全不能控制，哪些種子會長大成樹、開花結果。但你又不能不播種，因為沒有「種子」，就一定不會有「結果」。你所能做到的，就只是勤奮地，盡量提高「種子發芽、長大成樹 和 開花結果」的機會率。

時間上，你要不間斷地播種。空間上，你要在很多領域播種。策略上，因為人生的時間和空間，都十分有限，散播種子要有，先後緩急之分。相對於你自己來說，「種子結成果」機會越高的時空，就是越適合你的「田地」和「季節」。你就應該散播得越多「機遇種子」。

同時，你要從一開始就知道，絕大部分種子會，無疾而終。可能每一百萬粒種子之中，只有一粒有結果。然後每一百萬個果實之中，只有一個是美味的。

但是，即使你失敗了一千億次，只要有一次成功，你就永遠改變了歷史。

— Me@2010.03.21

— Me@2010.09.26

— Me@2012.02.20

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2012.02.22 Wednesday (c) All rights reserved by ACHK

Single-world interpretation, 6.2

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In the Many-worlds interpretation (MWI), when we say that “a + b” collapses to “a”, there is a shift of definition of “you”.

MWI is in one sense correct: choice b version of you still exists. But the trick is that he is not in another universe. He is in the environment of this universe.

And perhaps in reverse, you are also part of the environment of him.

— Me@2011.11.20

2012.02.22 Wednesday (c) All rights reserved by ACHK

種子論起點 11.0.1

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這段改編自 2010 年 3 月 20 日的對話。

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剛才我講的那個理論，我們應該為它，起一個名字，以防日後討論問題時，需要用到它。

其實，根據剛才的討論內容，這個理論本來，可以叫作「種子靈感天線搞 gag 間書太極謀事在人成事在天可遇不可求有心栽花花不香無心插柳柳成蔭踏破鐵鞋無覓處得來全不費功夫原理」。

但是，這個名字實在太長，不適宜日常的運用。如果不是那麼長，又很難可以完全準確地，捕捉到它的神髓。這就是困難所在。

（安：根據你這個理論本身，如果你刻意地，硬要立刻想出，一個好的名字，你反而不能如願。）

— Me@2010.03.21

— Me@2010.09.26

— Me@2012.02.20

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2012.02.20 Monday (c) All rights reserved by ACHK