Levels of Reality

13 November 2010

If you think about it, reality comes in many levels, each level involving different kinds of things, having different kinds of properties. Perhaps most people would think of things like dirt at the bottom level, then us at the next level, and the sky at the highest level. But philosophers have a different, more abstract concept of levels of reality. Here are some examples:

• You and I---or at least our bodies--- along with tables and chairs and cities and towns and planets. This is what philosophers call the level of medium size objects. This level of reality is what most of our lives are concerned with. The sorts of things we can perceive with our senses, and so forth.

•与之对比的是一个被称为量子现实的层面。像夸克这样我们看不见的物体,具有我们几乎无法理解的自旋性质。

•在量子物理之上,我们发现了电子和原子;然后是化学事实层面,有化学物质和化学键;然后是生物层面,有细胞。

• Higher levels too, like maybe involving minds, societies, nations…

• And there are angels and God… and numbers for that matter. So we’ve got lots of levels!

Intuitively each level has a characteristic kind of object, characteristic kinds of properties and facts, and usually a different profession for people that study or work with it: quantum physicists, solid-state physicists, chemists, biologists, psychologists, sociologists. Nearer the top, mathematicians and theologians. And then, at least according to Aristotle, at the very top: philoophers. He put philosophers there because we think about Being --- that is, the whole shebang, and we try to figure out how the different levels are related. Most contemporary philosophers feel more in the middle than at the top. And their approach to the issue of levels of reality focuses on the topic of reduction.

We can set God and the angels aside; philosophers who believe in them aren’t likely to suppose they are reducible to something else, and those who don’t believe in them don’t worry about their reducibility either. We can also set numbers aside, since neither Ken nor I have any firm ideas about them. Then, physicalists like Ken and I both tend to be, think that the rest must be one big reality, physical reality. Facts about chemicals really are just facts about atoms and electrons, and they are really just facts about subatomic particles, or whatever else turns out to be at the bottom. And the same with biology and chemistry; psychology and biology; sociology and psychology.

这些划分是基于人类如何与不同的现象互动,我们使用的工具,我们的兴趣,当然,还有国家科学基金会所涉及的预算。最终,形而上学上,哲学上,只有一个现实,运动中的物质——或者量子物理学家用什么代替物质,或者用什么代替运动。

One might think of this as depressing and mysterious. I don’t feel like a complex of quarks. Of course, there is another theory. It’s the competitor to Reductionism. It’s called Emergence. That’s the idea that each level in some way emerges from the one below, under certain conditions. And when emergence happens, truly new objects, properties, and facts are involved.

One might favor reductionism over emergence on the basis that in some cases, the reductions though not yet discovered, are in principle to be had. Biologists have known since Mendel that something, which they called `genes', are responsible for inherited characteristics. But for a long time, there were debates about whether genes could really be explained by physical and chemical properties. Many biologists thought that genes could never be fully explained just in terms of physics and chemistry. They thought, in other words, genes were emergent, and not reducible. But with the discovery of DNA and the development of molecular biology, we know this isn't so. The structure that Watson and Crick discovered has allowed scientists to explain how genes work without appealing to anything but the principles and properties of physics and chemistry.

If everywhere some philosophers see emergence, scientists will eventually provide reductions, emergence will just be another idea in the dust-bin called the history of philosophy. But that grand result would require a biological understanding of consciousness and all the other mental phenomena. Should would-be physicalists like Ken and I really be so confident of that? Is it so obvious that it even makes sense?

Luckily we have an expert on all of this to help us think about it, Tim O’Connor, author of Theism and Ultimate Explanation.

Comments(24)


Guest's picture

Guest

Saturday, November 13, 2010 -- 4:00 PM

把“上帝和天使”放在一边。A bit simplistic,

把“上帝和天使”放在一边。有点简单了,你不觉得吗?这不是意味着一个独立的现实吗?我可能误解了你的帖子(这种情况很少发生),但是关于上帝就是一切,甚至更多的观点呢?是各个部分的总和还是更多?
I would also point out that just because something is larger in size than another does not mean it's more complex.

Guest's picture

Guest

Saturday, November 13, 2010 -- 4:00 PM

For my part I wonder if this discussion shouldn't

For my part I wonder if this discussion shouldn't connect up with the classic substance-attribute debate. I mean, the thorough-going reductionist might feel compelled to reduce even seemingly fundamental substances like electrons to mere bundles of properties (a charge trope, and a mass trope, and a spin trope, etc....), with nothing over and above (or beneath and below?) those attributes. But this certainly strikes me as counter-intuitive. Moreover, if we suppose that consciousness can't be reduced to the physical (I personally doubt that it can), then we seem faced with the same problem, but with the phenomenal. Could consciousness just be a bundle of qualia, as Hume seemed to think? Doesn't experience entail an experiencer?

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Guest

Wednesday, November 17, 2010 -- 4:00 PM

Beyond your uncertain levels of reality is the abs

Beyond your uncertain levels of reality is the absolute level of truth.
=
MJA
Reno

Guest's picture

Guest

Wednesday, November 17, 2010 -- 4:00 PM

A mild beef with reductionism: Suppose I wish to

A mild beef with reductionism:
Suppose I wish to convince persons to vote on a measure. To do so I won't reference solutions to chemical problems. It is possible to conceive that our social problems are, at base, physical problems, but that doesn't imply that they are this way.
从另一个角度来说,我不会去践踏我感兴趣的物理问题的解决方案,因为它可能会在更基本的层面上与物理问题发生冲突。我要看看这个解决方案能让我走多远,然后就到此为止。
I guess I just don't think that pointing to a smaller level of reality constitutes an explanation. An explanation constitutes an explanation, whether it be a mathematical model or a qualitative concept. Of this set of explanations there exists a subset of explanations titled "the thing that makes the thing we're interested in does this" -- in Aristotelian terms, a "material cause" -- which seems to model what a reductionist explanation consists of. One may build their model with other levels in mind, and science tends to do this because it appears more consistent (which I think is nice), but it doesn't have to be the case.

Guest's picture

Guest

Thursday, November 18, 2010 -- 4:00 PM

Will the previously announced program "Derrida and

之前宣布的节目《德里达与解构》会在晚些时候播出吗?
It was scheduled for the week of 11/14/10.

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Guest

Thursday, November 18, 2010 -- 4:00 PM

Shouldn't explorations involving "levels of realit

Shouldn't explorations involving "levels of reality" focus primarily on realities we can confirm empirically or analytically...realities we can share with little or no disputation...and realities that are, by and large, merely points of view that cannot be confirmed as, for example, true universally?

Guest's picture

Guest

Thursday, November 18, 2010 -- 4:00 PM

作为一名科学家,我有一个问题。Why does an acc

作为一名科学家,我有一个问题。为什么接受还原论需要“对意识的生物学理解”,更重要的是,为什么有些人认为这种理解并不存在?虽然认识不完全,但科学是存在的。如果不是这样,现代医学就不会存在。也许很难理解或接受,但这并不能改变它。一个人可能不了解自己使用的计算机,那么,这难道不构成一个独立的现实吗?
Fundamentally, I also wonder how much this discussion is not the result of attachments to western theology. Zen teaches us to accept what is without trying to fit it into our understanding. It is quite the opposite and I find it quite comforting. I also don't have attachments to the concepts of God and angels.
我并不害怕我的意识与我周围的世界不是截然不同的东西。我感到欣慰的是,我是共同存在线索的一部分。我的意识是宇宙的一部分,因为它是我的一部分。它太复杂了,我无法一一列举,但这并不使它不那么复杂。
我想,作为一名科学家,我坚定地站在了简化论者的阵营。我只是想知道,如果一个人批判性地思考,他如何能够否定我们存在的物理本质。
This does not, of course, mean that there are not still greater questions. My question, though, again, being a happy convergence of quanta, and the foci of the universal forces that have, over eons conspired to create my consciousness, all of which now result in the question, what does any-one's concept or understanding of reality have to do with it at all?
如果我不明白,请原谅我。

Guest's picture

Guest

Friday, November 19, 2010 -- 4:00 PM

When reductionists can look at my (or someone's)CA

当简化主义者看到我的(或别人的)ct扫描(或任何将来可能会有的扫描),正确地说,“啊,你现在想到的是欧几里得证明不存在最大素数的第二步,这一步是XXX”,那么我就会接受简化论。在此之前,涌现是主导。

Guest's picture

Guest

Saturday, November 20, 2010 -- 4:00 PM

Reality is at the absolute equal or same level as

Reality is at the absolute equal or same level as truth.
其他方面都不真实。
你是什么级别的?
=
MJA

Guest's picture

Guest

Saturday, November 20, 2010 -- 4:00 PM

Emergence Theory, is not religious friendly, but w

Emergence Theory, is not religious friendly, but will explain, I think, how "rituals" aid the human psyche.
Emergence is not going to explain the Monotheistic Interpretation of Reality, because the arguments for the existence of the Monotheistic God, have all been recognized as fallacious. Arguments which hold no credence in the Twenty-First Century.
涌现理论可以验证几个世纪以来一直支撑着自由主义思想的哲学。为了反对那些垄断“来世”的人,我们俗人必须认识到这一事实。

John Perry's picture

John Perry

Saturday, November 20, 2010 -- 4:00 PM

有几件事。1) We will air the Derrida s

有几件事。
1) We will air the Derrida show before long. I got sort of overcommitted with foreign travel leading up to the scheduled date, so we decided to postpone it, rather than have me show up more than usually exhausted and incoherent.
2) For similar reasons, I've been slow to do my comment-screening, so forgive the delays in getting your comments up.

Guest's picture

Guest

Saturday, November 20, 2010 -- 4:00 PM

水平的现实?是的,我想是的。Illustration:

水平的现实?是的,我想是的。插图:现实第一层——你把我的头放在水下的时间超过了我屏住呼吸的时间。我被淹死。这是事实。
现实第二层——你是天主教的信徒,我是禅宗佛教徒。你信仰基督,玛丽,等等;我认为它们并不重要。这就是条件现实。
Reality Level Three-quantum physics and quantum mechanics consider those things that are infinitely small and infinitely speedy---so small and so speedy that we cannot know where they are, only where they may have been. This is theoretical reality.
当然,现实的种类远不止这些。但我们大多数人永远不会在乎。这是应该的。我们大多数人没有理由去关心现实,除了每天进入我们生活的那些。虽然我们可能有哲学思维,但我们不是哲学家。这也是它应该有的样子。

Guest's picture

Guest

Saturday, November 20, 2010 -- 4:00 PM

A philosopher is a lover of truth, and I as are m

A philosopher is a lover of truth,
and I as are many are true lovers too.
=

Harold G. Neuman's picture

Harold G. Neuman

Sunday, November 21, 2010 -- 4:00 PM

Heisenberg's and Walton's comments seem to agree w

海森堡和沃尔顿的评论似乎在原则上是一致的。阿勒斯的俳句对联很巧妙。但是,哲学家也倾向于提出问题。我们认为,这比假设知道所有答案要好。

Guest's picture

Guest

Monday, November 22, 2010 -- 4:00 PM

I only know One answer, the truth. And it took mo

I only know One answer, the truth.
And it took more questions than the great Socrates asked, to find The Way.
Keep asking, and maybe you'll get lucky too.
Be One,
=
PS: But who should One ask about the truth?
Who knows the Way?
我们在哪里可以找到今天的伟大圣人?
The answer quite beautifully and simply,
Is You!

Guest's picture

Guest

Monday, November 22, 2010 -- 4:00 PM

"FUG" (see above) raises a question about "explana

"FUG" (see above) raises a question about "explanation" that I would modify with the necessary/sufficient distinction (I often find this distinction useful, but I have no idea where it comes from or if it is philosophically respectable. Can anyone help me?)
Take the example of the writing in these blogs. Reductionism can chart the "necessary" physical conditions that make this writing possible. But reductionism is not "sufficient" to explain the content of these particular blogs at this particular time.

Guest's picture

Guest

Saturday, December 4, 2010 -- 4:00 PM

我很欣赏R. Wess的观点。I don't k

我很欣赏R. Wess的观点。我不知道我是否需要解释才能接受。从科学上讲,两者都不可能是完整的。我们无法完全描述宇宙。我们可以简化宇宙并描述它的某些方面,作为一个整体或在量子中,或者我们可以关闭一部分,称它为一个封闭系统。不管怎样,我们比宇宙还小,无法容纳它。这两个概念我都不懂,但我看得出来,这两个概念都不完整。
On another tack, Phiwilli states he will accept reductionism when a person's thoughts can be detected on the order of "Ah, you are now thinking ... Euclid's ... prime number ... XXX". Much of what I heard on the radio came down to the ability to determine thought in such terms. I would like to point out that I rarely hear anyone (R. Wess a rare exception) who doesn't fall back to the safety of the superiority of the mind. No one, for instance states that they doubt biology because we can't tell how many leaves a tree will have by scanning the seed. Nor have I heard anyone doubt gravity because we can not tell where a leaf on a tree will land once it falls. We listen to weather reports without doubt, yet no one can tell where any drop of rain will land. We have no better understanding of any other complex system which for the most part we accept.
That last weather report example is bad. No one really believes the weather.
I am reminded that man kind did once believe trees had souls. Such things are seen as quaint myths. So, I am sure, will our current attachments be dismissed. We will need a much greater level of understanding of our own minds and the universe at large for most of us to let go of our personal myths.
The point is, I find it more fascinating that people are comfortable not knowing some things and entirely uncomfortable not knowing others and likewise afraid of knowing ourselves. The theories are less interesting than the reasons we need them.

Harold G. Neuman's picture

Harold G. Neuman

Monday, February 7, 2022 -- 8:45 AM

I made comments on this post

十几年前我就对这篇文章发表过评论。从那时起,我开始转向一种类似于现实层面的思维方式。就现实和真相而言,无论按字母顺序还是按事实顺序,它们至少是近邻,我花了时间和精力来研究这两者是如何结合在一起的,无论是狭义的还是广义的“术语”。是的,塞拉斯哲学的概念仍然吸引着我。不,我还没有什么惊人的发现。我在PT博客上发表了一些关于背景的评论。对于某些人,在某些情况下,它似乎在一定程度上扭曲了现实。
在我看来,后现代主义就是一个例子。

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Harold G. Neuman's picture

Harold G. Neuman

Monday, February 7, 2022 -- 12:54 PM

Professor Perry:

Professor Perry:
These ideas, just in case you or your colleagues happen to revisit this post.
On truth: A thing is either true, or it is not, a priori, fortiori and posteriori. You cannot just make something up and claim it true. No less than a president tried this numerous times, failing miserably.
On reality: This is more flexible and may depend upon circumstance, content, context or contingency. Rorty addressed contingency and irony. Some people make up their own version(s) of reality, as they go. This is called a separate reality.

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Harold G. Neuman's picture

Harold G. Neuman

Tuesday, February 8, 2022 -- 2:14 PM

If it was fair for me to say

If it was fair for me to say reality and truth are close neighbors, the following notions about truth may also be fair. Or at least sunny and mild. Like today.
真理必须符合证明的标准。它是无可辩驳;可以是现存的,制造的或发现的。如果没有这些,那就只是一种假象,一种先验。
> truth is indisputable. I like a garlic-stuffed olive in my dry martini. there is nothing arguable, save perhaps gin or vodka. that is moot. liking and desiring are propositional. truth, with a small t is still truth.
> truth is contextual ( as is reality).circumstance and contingency affect validity, thereby weakening truth that is based in belief, ideology and/or opinion. context and content become functionally indistinguishable.
当我们知道的更多的时候,善意的真理就会被淘汰。它已经失去了实用性,是一次性的。实用主义拒绝不那么有用的东西。有通往遗忘的楼梯总比没有楼梯好。
> when predicated on belief or opinion, truth may retain legitimacy. this is more likely if it were true before anyone formed a belief or opinion. contextual reality can confuse even the most astute among us.. yet, we have allowed it to do so. strange.

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Harold G. Neuman's picture

Harold G. Neuman

Wednesday, February 9, 2022 -- 1:04 PM

Final installment, Contextual

Final installment, Contextual Reality, Q & A.
When does the weight of contextual reality subsume that of universal reality?
答:如果大众/流行文化的普遍性和后现代主义的出现没有给我们任何线索,那么我们不关心关注。
But, but---how can that possibly be?
Answer: complacency, laziness and fear. Unwillingness to think outside the box...jump out of the system. It is too hard to swim upstream, too much work to challenge status quo.
一些结论:我们允许环境;内容;语境和偶然性将“事物可能是怎样的,而不是它们可能是怎样的”这一现实纳入(吞噬)。大众/流行文化的影响和它所带来的一切,足以吓退纳格尔。我不这么认为。当我还在玩摇滚的时候,他和其他人已经预见到了这一切。
Now, I play jazz...

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Harold G. Neuman's picture

Harold G. Neuman

Friday, February 11, 2022 -- 5:29 AM

Oh...I mentioned Richard

Oh...I mentioned Richard Rorty several comments ago....contingency and irony. Anyone who has read his essays knows of the one titled Contingency, Irony, and Solidarity.. I think it is obvious and pertinent that contingency and irony are factors in everyday life. We may only think of them in passing, insofar as they are ubiquitous, not overpowering. Still, they present problems. So, in order to help us cope, we seek solidarity with fellow travellers, in order to bolster common beliefs...thus, in turn, helping us overcome the propositional aspect of those beliefs. I think this was part of what Rorty conveyed in his essay---perhaps not as clearly as he intended. Well. Philosophy is like that at times. Keeping it 'down to earth' is a full time effort. Persuading others of the desirability of this is equally challenging.

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Harold G. Neuman

Monday, February 21, 2022 -- 9:34 AM

..................truth &

..................truth & belief are virtually never indistinguishable: belief is conditional---truth is not.

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Harold G. Neuman

Saturday, February 26, 2022 -- 2:38 PM

leaving off...for Davidson,

leaving off...for Davidson, belief is a propositional attitude. Propositions are conditional. Truth is, ' in the broadest possible sense of the term', truth. It is not truth just because someone believes it to be. The number of someones does not matter, unless they are all delusional. Mass hysteria does not happen only in a cathedral. A crowded football stadium will do as well.

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