Universal wave function, 4

Single-world interpretation, 4

That is, components of the wavefunction are decoupled from a coherent system, and acquiring phases from their immediate surroundings. A total superposition of the global or universal wavefunction still exists (and remains coherent at the global level), but its ultimate fate remains an interpretational issue.

— Wikipedia on Quantum decoherence

The universal wave function is deterministic?

— Me@2011.11.20

2011.12.07 Wednesday ACHK

Hidden variable

Universal wave function, 2

Assuming Bell’s theorem is correct, any hidden variable theory must be non-local.

Here is my guess:

The hidden variable is the wave function of the measuring device, aka the environment, which involves the rest of the universe.

In short, the hidden variable is the wave function of the whole universe.

— Me@2011.11.28

2011.11.28 Monday (c) All rights reserved by ACHK

Single-world interpretation

Everett’s thesis introduction reads:

    Since the universal validity of the state function description is asserted, one can regard the state functions themselves as the fundamental entities, and one can even consider the state function of the entire universe. In this sense this theory can be called the theory of the “universal wave function,” since all of physics is presumed to follow from this function alone.

The universal wave function is the wavefunction or quantum state of the totality of existence, regarded as the “basic physical entity” or “the fundamental entity, obeying at all times a deterministic wave equation”.

Criticism

Ray Streater writes:

    The idea of the wave-function of the universe is meaningless; we do not even know what variables it is supposed to be a function of. […] We find the laws of Nature by reproducible experiments. The theory needs a cut, between the observer and the system, and the details of the apparatus should not appear in the theory of the system.

Hugh Everett’s response

    If we try to limit the applicability so as to exclude the measuring apparatus, or in general systems of macroscopic size, we are faced with the difficulty of sharply defining the region of validity. For what n might a group of n particles be construed as forming a measuring device so that the quantum description fails? And to draw the line at human or animal observers, i.e., to assume that all mechanical aparata obey the usual laws, but that they are not valid for living observers, does violence to the so-called principle of psycho-physical parallelism.

— Wikipedia on Universal wavefunction

2011.10.16 Sunday ACHK

Free-will theorem by Conway and Kochen

Time in physics, 2

3. The future doesn’t exist at the present regardless of any definitions:

… as long as we admit that the experimeters have a free will, all other quantum objects have to have a free will as well so their outcomes can’t be functions of the data (hypothetical “hidden variables”) that exist in the past light cone.

— Ten new things modern physics has learned about time

— Lubos Motl

2011.09.09 Friday ACHK

Transcender time

This essay is adapted from an dialogue on 2010.04.09.

I have transcended past-present-future in my mind. The future may be as fixed as the past. 

(Kinon: Determinism?)

I have transcended Free-Will/Determinism. Like “finite” and “boundless”, they are not necessarily mutually exclusive. Our universe is finite and boundless, just like the surface of the Earth. The surface of the Earth is both finite and boundless.

(Kinon: I agree that Free-Will and Determinism are not necessarily mutually exclusive. They may be the same thing.)
 
NO! It should be “They may be two aspects of the same thing.”
 
— Me@2010.04.09

2010.12.09 Thursday (c) All rights reserved by ACHK

Redpill

“Lisp is the red pill.”

— John Fraser, comp.lang.lisp

The first appearance of the concept of the “red pill” in the 1999 film The Matrix. A hacker named Morpheus offers a choice to the film’s protagonist, Neo, to take the blue pill, where “the story ends, you wake up in your bed and believe whatever you want to believe”, or to take the red pill, where “you stay in wonderland, and I show you how deep the rabbithole goes.”

The term redpill is a pop culture term that was popularised in science fiction culture via the 1999 film The Matrix. The movie relies on the premise that an artificial reality that is advanced enough will be indistinguishable from reality and that no test exists that can conclusively prove that reality is not a simulation. This ties in closely with the skeptical idea that the everyday world is illusory. In the movie, a Redpill is the term used to describe a human who has been freed from the Matrix, a fictional computer-generated world set in 1999. Bluepill refers to a human still connected to the Matrix.

— Wikipedia on Redpill

2010.04.17 Saturday ACHK

藉口

.

原因有時間性.

理由沒有時間性.

— Mr Lee

.

.

原因不等於理由.

cause \ne reason

原因沒有對錯.

原因和結果只是客觀描述事件發生的時間先後次序.

理由有對錯.

.

.

e.g.

救災不力的原因是事前不知道災難的嚴重性.

但這不是理由.

作為領袖, 有責任預計最壞的情況.

.

.

藉口是

把原因(cause)誤作為理由(reason).

.

— Me

.

.

.

2009.08.24 Monday \copyright ACHK

Spinoza

Wikipedia:

在倫理學上,斯賓諾莎認為,一個人只要受制於外在的影響,他就是處於奴役狀態,而只要和上帝達成一致,人們就不再受制於這種影響,而能獲得相對的自由,也因此擺脫恐懼。

斯賓諾莎還主張無知是一切罪惡的根源。

.

Wikipedia:

斯賓諾莎還認為上帝是每件事的「內在因」,上帝通過自然法則來主宰世界,所以物質世界中發生的每一件事都有其必然性;世界上只有上帝是擁有完全自由的,而人雖可以試圖去除外在的束縛,卻永遠無法獲得自由意志。如果我們能夠將事情看作是必然的,那麼我們就愈容易與上帝合為一體。因此,斯賓諾莎提出我們應該「在永恆的相下」(sub specie aeternitatis)看事情。

.

Russell’s History of Western Philosophy, on Spinoza:

Only ignorance makes us think that we can alter the future;

what will be will be,

and the future is as unalterably fixed as the past.

.

.

2007.07.05 CHK2