Sunday, April 30, 2017
Monday, April 24, 2017
Gyrating Vultures
While
wandering through the woods recently my attention was drawn to five
turkey vultures lazily circling. It was like a slow, graceful aerial
dance; almost mesmerizing in their elegant undulations. The turkey
vulture is a large, unsightly bird, over two feet (65 cm) long, with
a wingspan of over five feet (1.7 m). This bird provides a valuable
service to the environment by consuming carrion... a major benefit to
the world. Without vultures, dead critters would lay around
putrefying and spreading disease.
The
five birds I saw gracefully circled one another—forming a spiral of
wings that slowly revolved. The birds' relative positions were
maintained, which caused a sensation for me of seeing their formation
as if it was a fixed entity, rather than five individual beings. Yet
one bird—near the top of the group—drew my attention, as it moved
more independently. It seemed as if it was like a musical conductor
of a small, silent vulture orchestra. It was a beautiful sight.
In
a few moments I noticed that the vertical axis of the rotating
vulture helix was very leisurely drifting westward—reminiscent of a
tornado or a water spout, in extreme slow motion. Then I noticed
that, for the time that I was watching the show, I had seen no wing
flaps. For a couple of minutes or more these birds were
soaring—tipping a bit from side to side as vultures do, but with
their wings frozen in position, outstretched and in a slight upward
angle.
The
vultures were being buoyed up by rising warm air at the end of the day, as
heat waves from the warm ground rose into the cool evening air. These
rising thermals are advantageously used by large birds such as
vultures, eagles, and hawks, to soar with minimal energy expenditure.
It takes a large effort for these birds to lift themselves from the
ground, so they use thermals, much like humans do with hot-air
balloons. My vultures were free-riding on a small thermal, that was
not strongly rising, so they stayed at about the same 30 foot (10 m)
elevation—floating and circling unhurriedly westward.
When
people see vultures circling, they expect that the birds are
searching for carrion. These birds will float in lazy circles, their
exquisite sense of smell (for a bird) seeking those rising odors of
decaying flesh. Were these vultures looking for dinner? Was it a
family out for an evening flight? Were they simply enjoying
themselves, as they received a free ride on the evening warm air? If
I could lose my fear of heights and have my arms transform into giant
wings—sort of like a hang glider—I'd have wanted to join the
vulture ballet that evening. But I was content to remain a grounded
human, as I soared with the birds in my imagination.
Monday, April 17, 2017
Privileged Presumption—Part 2
What
began this blog posting on privileged presumption was an occasion in
which I recently caught myself exhibiting a dose of hubris, when I
caught myself looking upon the ancient Greeks a bit disdainfully. I
have recently taken a couple of online courses on ancient Greece and
am currently reading a book on ancient Greek philosophy. I often find
it a struggle to grasp the dense thinking and teachings of Greek
philosophers from 2500 years ago, such as Socrates, Aristotle, Plato,
and others. Their era was very different, in so many ways. It is a
big challenge for scholars to translate early Greek prose into an
understandable style of English that faithfully captures the intentions of those
ancient philosophers. In addition, I sometimes struggle comprehending
the mores and beliefs of those ancient societies.
Many
of the Greeks whose writings we have from that period were well-to-do
and lived a life of leisure, which gave them lots of time to sit
around and ponder the mysteries of the human mind, as well as the
nature of the universe. It was a time when the first Greek (and thus
western) scientists appeared, although they didn't call themselves
that, since the word “science” didn't really come into use until
the 17th century. If anything, they called themselves
natural philosophers, because they were seeking a better
understanding of the natural world, and scientific experimentation
was virtually unknown, so they philosophized. Their crucial offering
to human knowledge was to usher in an era which replaced the antics
of the gods in people's minds with the actions of Mother Nature.
That
initiation of scientific thought was a foundational development in
the progress of Homo sapiens. Prior to the time of these first
natural philosophers coming onto the scene, the accepted explanation
for many events that occurred was that the gods did it. An earthquake
or flood or tornado? It must be that the gods are pissed off at
people and were punishing them. Have a good food crop or experience
victory in battle? It must be that the gods liked us and graced us
with favor. The Jewish Bible (Old Testament) is full of these kind of
happenings which are attributed to God. Similarly, all sorts of
personal tragedy or good fortune—disease, death, good health,
wealth—were attributed to the gods. The deities either were upset
with me and punished me, or thought I deserved a favor and rewarded
me.
Then
came those first Greek scientists: Thales, Anaximander, Anaximenes,
Pythagoras, Heraclitus, Parmenides, etc., beginning around 600 BCE.
They all contended that no, the gods did not act to harm or
help us; the gods had better things to do. Moreover, events were
neither supernatural nor inexplicable—they were natural. It
is how the world unfolds, and furthermore, it is possible even to
learn how these events happen. For example, if you're sick,
maybe you ate something nasty. If your child died, maybe a disease
caused it. If your army won the war, maybe it was because of superior
battle plans. No rain for the last month? Weather patterns must have
caused it.
The
main point of these ancient scientists was that there is a perfectly
natural cause for these things. So the natural philosopher's
job is to do some deep thinking—and maybe even run a few primitive
experiments—and see if those causes can't be discovered. We should
put effort into ferreting out the causes, rather than trying to
appease the gods, they taught.
And
that's just what they did; they investigated. They were breaking new
ground; exploring new territory—without the benefit of much prior
knowledge of the natural world. They invented new ideas and derived
new hypotheses. It is to be expected that they stumbled a few times.
They certainly disagreed with each other and engaged in endless
debates. But they began the process of scientific thought.
So
let's get back to my own case of recently falling prey to elitist
hubristic thinking. Many years ago, while in middle school, I learned
that those ancient Greeks, in their attempt to understand the natural
world, decided that everything in the universe was constituted of
four elements: earth, air, water, and fire. Even as an adolescent I
knew that this was wrong. Hey, there are actually over 100 elements,
and the periodic table exquisitely and logically lays it all out. In
fact, those four Greek elements aren't elements at all, since they
really are chemical compounds or molecules made up of several kinds
of basic elements.
Without
realizing it, I had slowly developed a slightly aloof attitude
towards those Greeks of yore. It's such an easy trap to fall into. In
fact, we need to put effort into avoiding feeling superior to ancient
peoples or to those in the contemporary world who are “less
developed” than we are. As I've pondered our propensity to look
down upon those less knowledgeable than we are, I think about how
folks in the future will look back at our follies and wonder how we
could have been so foolish. How harsh will they someday be judging
us?
I
think there are numerous areas in which our future offspring will be
inclined to disdain who we were, what we believed, and what we did.
Causing climate change will undoubtedly top the list. But they'll
also be scratching their heads over other foolish actions and beliefs
of ours, such as racism, great wealth inequality, nuclear weapons,
rampant capitalism, pollution, over population, habitat destruction,
nationalism, and others. They will wonder why it was that the 20th
and 21st century humans could have been so muddle headed
and blind.
One
of the most astute ideas introduced by those ancient Greek scientists
was that we humans are, like all animals, part of nature. We are not
separate from and perched atop all the world's critters, like the
gods may be. We are not removed from all those animals, or
fundamentally superior to them, despite the power of our minds. We
may be capable of godlike behavior, and our potential is amazing, but
even the ancient Greeks understood that we emerged from the natural
world and were an integral part of it. Some 2500 years later, it'd be
cause for celebration if we elitist, hubristic moderns understood
that simple truth. Let's climb down from our privileged presumptive
pedestal and exhibit a little well-deserved humility.
Saturday, April 15, 2017
Monday, April 10, 2017
Privileged Presumption—Part 1
I
was recently discussing with my wife the propensity for people who
regard themselves as much better than average or are among the
learned class to look down upon those who are less educated than
they. It's a very common attitude of those who are literate,
cultured, and/or intellectual. They often feel that they are among
the privileged class and thus have the right to belittle and slight
those who are not educated or are otherwise disempowered. Not content to just look down upon the less fortunate, the elite often feel entitled to
tell the masses what to do—after all, their noble position places
them at an advantage and the power that they wield enables them to
take charge. The privileged ones know best, don't they?
My
wife suggested the term “elitist hubris” to describe them. I've
titled this post “Privileged Presumption,” as an alternative
description (and I like to play with alliteration). Maybe the best example of this attitude over the last
several hundred years is the way in which the West (Europe and the
US) has dealt with aboriginal and undeveloped people all around the
world. Encounters between Western people (who are largely white and
powerful) and those less educated and primitive (who are often darker
skinned and vulnerable) have most always exhibited some aspect of
elitist hubris.
For
example, when the Spanish Conquistadors entered the Americas in the
16th century, they regarded the Incas and Aztecs as
inferior people who needed to be subdued and converted. When the
European powers entered the African continent in that same time
frame, they looked upon the natives there as savages who required
domination. Similar events happened in Australia, the Middle East,
and the Far East. It was repeated again and again: those with
superior knowledge and power believed that they had the right to
exert their will on “backwards” people—often under the
justification that they were boosting the simple people into the
civilized world.
There
are two types of groups of people who tend to practice this process
of privileged presumption and who often cooperate with each other: academics and the powerful. Those in
power have the capacity to enforce their desires on those who are
weak. The academics often provide the rationale for what those in
power do, in exchange for protection and privileges. Those two groups
form a complementary team that solidifies the superior position of
both of them.
Another
way we moderns sometimes practice elitist hubris is to look down upon
people from the past, who did not have the benefit of our superior
modern knowledge. It's easy to consider past beliefs and behavior as
rather primitive, compared to our advanced knowledge of today. How
could those simple people have thought that the sun circles the
Earth? How could ancient people have believed in a pantheon of gods,
when we know there's but one God? How could those naive people have
believed that an amulet could cure disease? We know so much more
today, and this knowledge can cause us to look upon the ancients as
simplistic people, if not also rather foolish. We rarely pause to
note how arrogant and elitist we are behaving, when we do this.
More
on hubris next time...
Tuesday, April 4, 2017
Slow Bumblebee
I found this bumblebee hanging around... not inclined to move very much, so it allowed me to get close to photo it. Was it ill? Was it satiated with spring nectar and thus lazy and happy? Click to enlarge.
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