Leonard
Mlodinow is a Cal Tech physicist who co-authored the book The
Grand Design, a widely read but unconvincing embrace of a
particularly extravagant form of string theory which has no
observational support. The book ends by assuring us that the theory
the authors favor is the theory that Einstein was looking for. That is a
lame appeal to authority, rather like arguing, “If Abraham Lincoln
were alive today, he would endorse my economic theory.”
Mlodinow
has also co-authored the book War of the Worldviews, in
which he debates various deep topics with Deepak Chopra, the
widely-read author of numerous books. The format of the book
consists of alternate chapters by Mlodinow and Chopra, usually taking
opposing standpoints on various big questions.
Early
in the book (page 17), Mlodinow bombastically asserts, “Science
can answer the seemingly intractable question of how the universe
came into being, and there is reason to believe that science will
eventually be able to explain the origins of consciousness, too.”
But he does nothing to back up these statements. There is actually no
reason to think that science ever will be able to answer the question
of what caused the universe to come into existence, and quite a few
scientists have admitted that fact. Later on (page 181), Mlodinow
admits, “We still aren't close to discovering the basis of 'mind'
or consciousness as an emergent phenomenon based on interactions
among neurons,” a statement that undermines his previous statement
that “ there is reason to believe that science will eventually be
able to explain the origin of consciousness.”
Compare
Mlodinow's swaggering statement to the much earlier but far wiser
statement by the great scientist Isaac Newton: “I seem to have been
only like a boy playing on the sea-shore, and diverting myself in now
and then finding a smoother pebble or a prettier shell than ordinary,
whilst the great ocean of truth lay all undiscovered before me.”
That statement – a statement of great humility – is still
appropriate today, as we discover more and more that we don't
understand.
In
a nine-page chapter on “Is There Design in the Universe?”
Mlodinow has a chance to use his physics expertise to rebut those who
have argued that the physical constants and laws of our universe seem
tailor-made for the appearance of intelligent creatures such as us.
But he chooses to say nothing about such reasoning, and does not
mention any of the many cases of fine-tuning or cosmic coincidences
widely mentioned by other physicists in the context of discussions of
the anthropic principle. But what is the reason for the order that
allowed us to exist? Mlodinow has an answer (page 116): “The gift
of life is not, then, the gift of a god, or of a 'universal
consciousness'; it is a gift from the sun.”
This
is a laughably weak answer for several reasons. The first reason is
that the existence of life and stable matter depend on something a lot more than just the sun: a whole series
of coincidences and apparent fine-tuning such as the precise equality of the proton charge and
the electron charge (to twenty decimal places), the nearly identical
masses of the proton and the neutron, the just-right strength of
things such as gravitation, the vacuum energy density, the strong nuclear force, and nuclear resonances. The second
reason is that while a sun like ours is a very important prerequisite
for life, the existence of our sun depends crucially on various
favorable physical constants that existed with their current values
billions of years before the sun existed. It has been shown that
stars like the sun would not exist if several physical constants such
as the speed of light, the gravitational constant, or Planck's constant
were slightly different. One does not explain such coincidences by
mentioning the sun, something that those coincidences helped to make
possible. Our sun is one of the fortunate end results of primordial
cosmic fine-tuning, not any explanation for such fine-tuning.
Mlodinow
goes on to lamely argue for a version of determinism: “The evidence
so far supports the view that the physical arrangement of all atoms
and molecules, and the laws of nature that govern them, determine our
future actions in the same way that they determine the actions of the
sun” (page 131). This is a statement similar to the famous
statement made by Laplace in the 19th
century, that if one could determine exactly the position and motion of all
atoms, one could foretell the exact future of the universe. But such
an outlook has been completely invalidated by quantum mechanics,
which tells us that there is a huge amount of uncertainty baked into
everything on the subatomic level. Modern physics does not support
the idea that arrangements of atoms and molecules lock in your future
decisions. That's a good thing, because the idea that you do not have a free will is a morally poisonous idea which would have disastrous consequences if everyone embraced it.
When
it comes to the possibility of any such thing as a soul, Mlodinow
says this: “All science can really say is that if it existed, we
think its effects on the material realm would have been noticed, and
that, until now, there has never been any credible evidence for it.”
This
is the standard story-line of many a physicist, one in which multiple
lines of evidence accumulated over many decades are completely
disregarded: evidence of ESP that has been carefully accumulated by
scientists for well over 70 years (particularly in recent ganzfeld
experiments); evidence of thousands of near-death experiences which
have been accumulated for more than 40 years; evidence of remote
viewing that was funded by the US government for well over a decade;
evidence of an abnormal ability of the mind to influence human
health; evidence that humans can inexplicably influence random number generators; as
well as evidence of apparitions that have been reported throughout
human history (a very-old fashioned phenomenon that simply refuses
to go away, and needs some kind of explanation that neither physics
nor psychiatry has yet provided).
Like
many modern physicists, Mlodinow has a kind of double standard. He dismisses
all of the extensive evidence suggesting that there may actually be
something like a soul or some paranormal human abilities, because it
conflicts with his world view based on reductionist materialism. But
he embraces a version of string theory not supported by any evidence,
even though such a theory (with its gigantic baggage such as multiverse associations and the idea
of many hidden dimensions) ends up being far more extravagant than
the simple hypothesis of a human soul.
If
Mlodinow aspires to work part-time as a“worldview warrior,” he
needs to come up with some more convincing answers.
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