rather than nothing? - philosophy131.files.wordpress.com · 2 this ultimate question: Why is there...
Transcript of rather than nothing? - philosophy131.files.wordpress.com · 2 this ultimate question: Why is there...
why is there
something
rather than
nothing?
Robert Lawrence Kuhn
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When I was 12, the summer between seventh and eighth grades, a
sudden realization struck such fright that I strove desperately to
blot it out:
Why not Nothing? What if everything had forever been
Nothing? Not just emptiness. Not just blankness. But not
even the existence of emptiness. Not even the meaning of
blankness. And no forever.
Lump together everything that exists and might exist—physical,
mental, platonic, spiritual, God. Everything. Call it all
“Something.” Why is there “Something” rather than “Nothing”?
Why does anything at all exist?
I now attack the question directly—finally in my life—by
speaking with some really smart people, primarily philosophers
(also one physicist) who have thought long and hard about this
seemingly impossible question. I begin with one of my favorite
philosophers, John Leslie, who has been much consumed with
Nothing and ultimate explanations. I ask him whether my question
is a legitimate one.
“It’s legitimate,” Leslie responds, “because it can have answers.
Even if one thinks the answer is ‘there just happens to be
something,’ that’s an answer.”
Is it the most fundamental of all questions?
“One could argue that all one’s views about the nature of the
universe will in the end depend on whether the universe, which
one believes exists, could have a reason behind its existence,”
Leslie says. “I myself don’t like the theory that the universe just
happens to exist and just happens to have the characteristics which
it does.”
At the end of all our strivings, after we have a final theory or a
series of final theories, and/or multiple universes with perhaps
different final theories in each, will we not still have remaining
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this ultimate question: Why is there Something rather than
Nothing?
“I think that’s right,” Leslie says. “I don’t think it would be
possible to say, for example, that because quantum physics tells us
that it’s likely that a blank would at some point fluctuate into a
real world that that’s our final answer. Because the question would
then be, ‘Well, why does this kind of quantum physics apply to
reality?'”
I try to progress by trying to discern the nature of Nothing.
Nothing seems “simpler” than Something, I proffer, in that
Something has extra stuff to be explained, whereas nothing does
not. Leslie agrees, but amplifies. “Even in a blank, there would be
all sorts of facts. Try to imagine out of existence all actual things.
Is that Nothing? In a sense, yes. But that overlooks the fact that
there’s an infinite richness of truths about possibilities which is
bound to exist even though no actual things exist.”
So it’s impossible to have purely Nothing, Leslie says. “Because
one always has possibilities. One always has facts about
relationships with possibilities. And one also has the fact that
certain possibilities are good and other possibilities are bad. These
are facts from which one can never escape—even if there were no
actualities, no real possibility of any actualities ever occurring,
there would still be no contradiction in the assertion that they may
possibly or potentially occur. Their occurring would not be like
the occurrence of, say, a ‘married bachelor.’”
For a philosopher to assert that anything is “impossible” is an
assertion of significance, and Leslie says that it is impossible for
there to be a Nothing without possibilities. “One can even go
further and say that the condition of Nothing would have to be
infinitely rich,” Leslie adds. “There’s an infinite number of
possibilities and an infinite number of facts about them [which
cohabit Nothing]. And those possibilities and the facts about them
will be there even if there were no actual things forever and ever.”
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To Peter van Inwagen, a philosopher at the University of Notre
Dame, Nothing is important. “What would count as an answer to
the Nothing question?” he asks. “We cannot describe a way that
nonexistent things interact with each other to produce existent
things—the nonexistent is never going to produce the existent.
This question cannot be like questions about why are there living
things, answered by the ways that nonliving things may have
interacted to produce living things. Explaining why we have
Something would have to have a wholly different kind of answer,
if it had an answer at all.”
Inwagen argues that “one sort of answer would be that it was
impossible for there to be Nothing, that ‘there being Nothing’ is
actually an impossible state of affairs. And that, of course, would
explain why there was Something rather than Nothing, since the
impossible cannot occur. There have been two attempts at this in
the history of philosophy. One is subsumed under the name
‘ontological argument’ [a greatest possible Being must exist] and
the other under the name ‘cosmological argument’ everything that
exists must have a reason or an explanation for its existence;
whatever begins to exist must have a cause. But I myself don’t
find either of them convincing.”
Another way of answering the question of why there is Something
rather than Nothing, Inwagen suggests, would be to show that “it’s
vastly improbable for there to be Nothing.” Here’s his argument:
“Think of all the possible ways that the world might be, down to
every detail. There are infinitely many such possible ways. All
these ways seem to be equally probable—[which means that] the
probability of any one of these infinite possibilities actually
occurring seems to be zero, and yet one of them happened.
“Now, there’s only one way for there to be Nothing, right?”
Inwagen continues. “There are no variants in Nothing; there being
Nothing at all is a single state of affairs. And it’s a total state of
affairs; that is, it settles everything—every possible proposition
has its truth value settled, true or false, usually false, by there
being Nothing. So if Nothing is one way for reality to be, and if
the total number of ways for reality to be are infinite, and if all
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such infinite ways are equally probable so that the probability of
any one of them is essentially zero, then the probability of ‘there
being Nothing’ is also essentially zero.”
Inwagen argues that because there are an infinite number of
potential worlds, each specific world would have a zero
probability of existing, and because Nothing is only one of these
potential worlds—there can be only one kind of Nothing—the
probably of Nothing existing is zero. A clever argument. But
doesn’t it assume that the prior probability of Nothing is precisely
the same as that of every one of the infinite number of possible
ways the world might have been? Inwagen’s argument turns on the
assumption that a “Nothing Total World” is equally probable to
every kind of an infinite number of “Something Total Worlds.”
But, to me, Nothing seems different. Nothing seems simpler in
that all the other kinds of worlds would require Something more,
with additional explanations required for whatever constitutes
those Somethings.
Some people would answer the question glibly and say “God”—
there is Something because God created it. “Either God is a
necessary being or he’s not a necessary being,” Inwagen responds.
“If God is a necessary being then there isn’t any possibility of
there being Nothing.” (This, in essence, is the ontological
argument, which almost every philosopher rejects as deficient and
spurious, though determining precisely why has proved to be
maddening.)
“If God is a contingent being,” Inwagen continues, “then we still
have the question of, ‘Why is there Something rather than
Nothing’ because one of the possible ways for there to be is that
there is Nothing, not even God. The doctrine of divine creation
would then be, well, if God exists and if anything else exists, that
anything else must be because God created it. This may explain
why there’s a physical world, but not why there is Something
rather than Nothing.”
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At the end of all disputations, Inwagen himself says, “I know what
I think is the right answer: I think God exists and that God is a
necessary being, and therefore it’s not possible for there to be
Nothing.”
As for God being the answer, I put the question to University of
Oxford atheistic philosopher Bede Rundle, whose book Why There
is Something Rather than Nothing rejects the God hypothesis.
“The question is fascinating in that it seems impossible at first
blush to give any sort of answer at all,” Rundle says. “It’s had a
longish history, starting with [Gottfried] Leibniz; many
philosophers have tried their hand at giving an answer. St. Thomas
Aquinas worked out his answer: There is God and God has to
exist—God exists necessarily.
“Now what I’m interested in,” Rundle continues, “is whether or
not that makes sense and can be substantiated.” He believes that
those who “in effect think that ‘there being Nothing’ is not a
genuine alternative because there has to be Something because
there has to be God” are on the right track—except for the God
part. “I’m trying to agree with the general petition that there has to
be Something or other,” Rundle explains, “but the theistic solution
seems to me to have its difficulties.
“Well, what are other conditions in which you can speak of
Something as beginning to exist?” Rundle asks. “Isn’t it that there
has to be a time when it [the Something] doesn’t exist followed by
a time when it does exist? But if you don’t have anything at all,
then you don’t have ‘enough time’; so it doesn’t make sense to
think of a state of affairs of Nothing being followed by a state of
affairs of Something.”
Rundle concludes that, “Perhaps we just have to confront it [the
fact of Something] as brute fact—that there is Something. One
can’t get beyond that, there’s no explaining it, and that’s that.”
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To me, to accept “brute fact” as the final explanation of
Everything—All-There-Is—is maximally unsatisfying (which
doesn’t make a brute fact wrong, of course). Is this just a defect of
human cognition? Certainly evolution would have no reason to
select for capacity to understand this question.
Rundle answers me thus: “If it’s a conceptual truth that there is
Something, and if there has to be Something, then that’s an end to
your agonizing, surely. And if you could refute all the arguments
that say, ‘We can make sense of the state of affairs which is
Nothing at all,’ then there is no alternative. There’s no such thing
or possibility as there being Nothing.”
So Rundle believes that there must be Something or other. There
cannot be Nothing: Nothing is an impossible state of affairs.
Is this progress? Or word games? I can’t decide. “Nothing” still
haunts me.
“God” would close off debate. What are alternatives? Quentin
Smith, an atheistic philosopher who is fixated on the riddle of
existence, has his answer.
“The first thing is to recognize that when people have tried to
answer this question,” Smith says, “they have defined Nothing as
this very thin sort of Something, like empty space, quantum
vacuum, the null set, a point, and the like—but few have really
talked about Nothing.” A better way to define a real Nothing, he
says, “is ‘Not Something,’ so the question becomes, ‘Why is it the
case that it is false that there is not Something?’”
There is an answer to this, Smith continues, “but it’s rather trite
and trivial, whereas we’ve associated this question as having some
great, grand, magnificent metaphysical answer—but the answer is
just logically trivial and then really quite uninteresting.
“The answer would be this,” Smith explains. “Right now,
Something is the state of affairs. The universe is Something. So
why does this Something exist? Well, it was caused to exist by the
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previous state of the universe, which is also Something, and that
previous state was also caused by a state previous to that, which
again is also Something and the infinite regress, the endless series
of causes backward, can continue without end…And so the reason
why there is Something is that each Something that exists has been
caused by a prior Something, and if you ask why there is
Something at all, I say that I just confine myself to one example,
this state of the universe.”
After he first realized this, it took him a while to recover from the
disappointment, Smith says with some regret: “I thought to
myself, ‘I spent all my life wondering why there is Something
rather than Nothing…and this is the answer?’”
Smith concludes that to call existence a “brute fact” is a more
logically complete explanation than either theism or any other
theory because there are no questions left unanswered in the “brute
fact” explanation.
So he contends that while “No Thing existing” might have been
the case, “Some Thing existing” is the case. And the reason is
trivial: Each and every thing was caused by a prior thing.
That can’t be the answer…but might it? I still want to scream,
“Why Not Nothing?”
Every time I return to it, the question drives me crazy.
To conclude, I consider God. And then no God. In each case, I
address the question, “Why Not Nothing?” In each case, I ask one
of the world’s most profound thinkers.
I put the question to Richard Swinburne, one of the foremost
Christian philosophers, thus: “I am astonished that there is
Something, anything at all. Nothing would seem to have been the
most likely, perhaps most logical, state of affairs.”
“I share that intuition,” Swinburne begins. “It is extremely
puzzling.”
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Swinburne’s approach is to first discern the essence of
“explanation.”
“All explanation,” he says, “consists in trying to find something
simple and ultimate on which everything else depends. And I think
that by rational inference what we can get to that’s simple and
ultimate is God. But it’s not logically necessary that there should
be a God. The supposition ‘there is no God’ contains no
contradiction.”
I ask the traditional skeptical follow-up question, “So why is there
a God?” Swinburne is clear. “There is no explanation of why there
is a God. And it would be theologically problematic if there were
such an explanation of any kind. If one were to say, well, as a
matter of fact, it is logically necessary that there is a God, well
then that would be a theological problem because that would mean
that the existence of God depended on some principle of logic
which was somehow superior to God.
“If God is defined as ‘explaining everything else,’” Swinburne
continues, “then God wouldn’t be God if there were an
explanation of his existence. God to be God is ‘the ultimate truth.’
That’s just how it is. We can’t go further than that.”
To Steven Weinberg, Nobel laureate in physics, the question,
“Why is there Something rather than Nothing” is “just the kind of
question that we will be stuck with when we have a final theory of
physics…We will be left facing the irreducible mystery because
whatever our theory is, no matter how mathematically consistent
and logically consistent the theory is, there will always be the
alternative that, well, perhaps there could have been nothing at
all.”
In modern physics, Weinberg explains, “the idea of empty space
without anything at all, without fields, is inconsistent with the
principles of quantum mechanics—because the Heisenberg
uncertainty principle doesn’t allow a condition of empty space
where fields are zero and unchanging.”
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But why, then, do we have quantum mechanics in the first place,
with its fields and probabilities and ways of making things
happen? “Exactly!” Weinberg says. “Quantum mechanics doesn’t
answer the question, ‘Why do we live in a world governed by
these laws?’….And we will never have an answer to that.”
“Does that bother you?” I ask.
“Yes,” Weinberg says wistfully. “I would like to have an answer
to everything, but I’ve gotten used to the fact that I won’t.”
_____________________________________________________
Here’s how I see it: The primary questions people pose—Why the
universe? Does God exist?—are important, sure, but they are not
bedrock fundamental. “Why anything at all?” is the ultimate
question.
I’ve come to only two kinds of answers. The first is that there is no
answer. Existence is a brute fact without explanation. Something
or Other has to exist. I don’t like this, but I must accept that it may
be so. The second is that at the primordial beginning—whatever
that may mean—Something was self-existing. The essence of this
Something was its existence, such that nonexistence to it would be
as inherently impossible as physical immortality to us is factually
impossible.
Candidates for essential self-existence? These include:
• Matter-energy and space-time.
• Natural laws of physics or higher-order laws that generate
quantum mechanics and perhaps multiple universes.
• Forms of consciousness, cosmic or otherwise.
• A creator God or an ultimate cause beyond the physical.
• Some overarching principle or value, like Plato’s “The
Good,” which somehow has causative powers.
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There are no doubt other candidates. And the argument that our
human brains/minds are incapable of answering this question, or
even properly addressing it, cannot be refuted.
Why is there Something rather than Nothing?
If you don’t get dizzy, you really don’t get it. Nothing is….closer
to truth.
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“So why is there a God?” Swinburne is clear.
“There is no explanation of why there is a God. And it would be theologically problematic if there were such an explanation of any kind. If one were to say, well, as
a matter of fact, it is logically necessary that there is a God, well then that would be a theological problem because that would mean that the existence of God depended
on some principle of logic which was somehow superior to God.”
“If God is defined as ‘explaining everything else,’” Swinburne continues, “then God wouldn’t be God if there were an explanation of his existence. God to be God is ‘the
ultimate truth.’ That’s just how it is. We can’t go further than that.”