Friday, February 26, 2016
Time to Think of Summer
It's time to think of summer and the day lily blossoms that will be in their glory. Click to enlarge.
Friday, February 19, 2016
No More Migration?
Why
do birds migrate? In a word, food. For many species of bird,
especially those in temperate climes, their food supply will dwindle,
as cold weather sets in. Birds in northern climates, for example, may
gorge themselves on insects during the summer, but must head south
when cold weather arrives and the insect population plummets. They
fly to the tropics, where their insect diet may continue through the
winter.
So
why not just stay south all year long, where bugs are plentiful? Why
migrate back north all that way? For many birds, it's a good idea to
exit the tropics for the summer, for at least three reasons: (1)
there is more competition for food in the crowded tropical forests,
(2) they themselves may become food for predators and
parasites whose population will increase, with all those birdy meals
flying around, and (3) if they head north for all those plentiful,
juicy insects coming out of hibernation, they will find lots of food
to make them healthy and give them a netter chance at reproduction.
Birds
have migrated for millennia, because the rewards are worth it;
despite the fact that it's a risky adventure. Many threats await them
en route, such as predators, high winds, cold snaps, habitat
degradation by humans, storms, wind turbines, etc.
Recent
German studies using tiny GPS tracking transmitters attached to white
storks, followed their migration flights south from Europe to
wintering grounds in Africa and Asia. The researchers discovered a
new development: some of the storks have dramatically altered their
migration routes in recent years. Why? In a word, food. What some of
these long-range migrating storks have discovered is that they no
longer have to endure several-thousand-mile risky flights to find
tropical food, because they've located new and plentiful sources of
meals along the way. Why fly another thousand miles or so, when
they've come upon a plentiful supply, halfway there?
And
what are these modern sources of abundant food for the storks?
Human-provided massive rubbish dumps and sprawling landfills. These
dumps contain oodles of food waste. To add icing on the garbage cake,
oodles of insects that thrive on the piles of rotting, discarded food
are fine prey. It takes a lot of energy to get a big stork in the air
and then to fly several thousand miles. These birds have a wingspan
of about five feet (1.5 m) and can weigh about eight pounds (3-4 kg).
If, on the way south to its winter feeding grounds, a bird can cut
short the exhausting flight and spend the winter on a huge
smorgasbord of food waste, why not?
This
discovery is a very recent one. It may appear to be a bonanza to the
storks, but is this a healthy and sustainable practice? Much of the
food is rotting and can contain some pretty nasty microorganisms.
Worse, the dumps contain lots of inedible and even toxic
wastes—plastics being a major concern. The truncation of their
migration flight can have knock-on consequences in the tropical
locales the storks no longer reach, when insect pests down south are
no longer preyed upon by the storks. Bug numbers might explode, which
would negatively impact farms in tropical regions.
These
disruptive migration flights of storks are just one of many examples
of how humans are altering the environmental balance achieved over
millions of years by Mother Nature. When that balance and the tight,
interconnected web all these animals are a part of, gets corrupted by
humans, the downstream ramifications can be severe. We are messing
with ecosystems—complex systems that we hardly understand. It took
millions of years to achieve that exquisite balance. We are
irreparably disturbing it. How long before it gets back in balance?
Can we back off and wait another few million years?
Monday, February 15, 2016
Ice Nymph
Winter has delivered us far too much cold and snow. As a result of this weather, we have been invaded by ice nymphs. I caught this one sneaking across the yard, just after dawn.
Friday, February 12, 2016
Pleasure or Pain?—Part 2
To
return to Bentham's insistence that it is our very nature to seek
pleasure (happiness) and avoid pain, it is interesting that he
reached his conclusion over half a century before Darwin had the
insight that evolution was the cause of our innate drives. While
Bentham grasped the fact that this behavior for all creatures was
“natural,” Darwin described for us how it came to be. That
is, those critters who were good at finding pleasure and avoiding
pain were more likely to survive, because their lives were more
robust and fit, and they succeeded in passing on this capability to
their offspring. In contrast, animals who did not succeed were more
likely to perish—if only because their quality of life was poor—and
not have offspring.
One
of the challenges of those who subscribe to Bentham's ideas of
utilitarianism is to know when we've acquired enough pleasure or
happiness. Can we control ourselves, so that life does not become one
extended obsession of seeking pleasure? Humans have not been very
good at reining in their greed. In fact, too many of those who get a
taste of pleasure go overboard with it. A prime example is today's
ultra-rich who seize all they can get and create overwhelming
economic inequality. Bentham and others saw that it must be the job
of government to check inequality and ensure justice for the
populace. It's not working very well in the US, today, however,
largely due to the fact that the super rich pretty much control
government through their corporate power.
On
the other side of the coin, we can ask: Should we go to extremes to
avoid pain? Is all pain bad? It may be natural for us to shun pain,
but are there occasions when we might need to face it? Unlike
animals, our cognitive abilities can help us examine the need to
avoid pain all the time, and do something about it. Doesn't it make
sense to visit the dentist and endure the discomforting prick of the
novocaine needle and have a cavity filled, so I won't have to endure
much greater pain later, when the tooth becomes abscessed? As another
example, I attribute a good deal of the enduring relationship I have
with my wife to the discomfort we endured during several conflict
resolution sessions we have had over the years. It was downright
painful to have to admit a few times that I was wrong in something I
did or said.
Volumes
of philosophical tomes and many psychological studies have pondered
the struggle to balance pleasure and pain. Like most issues of
philosophy, there never is a clear and final truth to be discovered.
Life is too complex for that.
Maybe
the best we can do is to make ourselves as aware of the inherent
nature of pleasure and pain as we can, and then move through life,
constantly seeking the appropriate balance at each step along the
way. Seek happiness, but don't go overboard with it. Control
yourself. Similarly, the avoidance of pain is natural, but it seems
to me that it's more a case of taking a close look and having the
courage to face pain when it makes sense to—especially when it
brings the opportunity to learn. It doesn't make sense,
however, to invite unnecessary pain into our lives. That just
causes damage.
Saturday, February 6, 2016
Pleasure or Pain?—Part 1
Every
creature—from gigantic blue whales down to microscopic
bacteria—shares a common tendency: to seek pleasure and avoid pain.
This seeking-versus-avoidance behavior is so deeply ingrained in us
that we almost never think about it. In fact, it's instinctual... we
don't have to think about it, because evolution has made it
innate in us. We do it naturally. We humans grab for pleasure—sex,
food, warmth, comfort—just as an insect does. Similarly, we back
off from pain much like a worm or a bear does.
Many
philosophers have pondered this pleasure-or-pain phenomenon, and have
come up with a wide range of theories and explanations for this
behavior. One of the early Enlightenment philosophers to delve into
this topic was an oddball Englishman named Jeremy Bentham. He was
both a philosopher and a social reformer who founded the school of
utilitarianism in the early 1800s. Utilitarianism seeks the “greatest
happiness” in the populace—defining happiness as a predominance
of pleasure over pain. Bentham was convinced that it is our nature to
have the pursuit of pleasure and the avoidance of pain literally
drive our behavior—that they “govern us in all we do, in all we
say, in all we think...”
A
couple of millennia before Bentham, the Greek philosopher Epicurus
had some of the same ideas. Both he and Bentham felt that a lot of
human behavior is driven by our desire to seek pleasure and avoid
pain. In fact, Epicurus decided that the very basis of human
fulfillment is dependent on our success at finding pleasure.
Unfortunately,
the use of the word “pleasure” can be problematic, because it too
often carries the connotation of shallow amusement or sensual
gratification. Thus Epicureanism came to be associated with
hedonism—a misinterpretation that has caused many people to shy
away from Epicurus' ideas—especially the more straight-laced
Protestants. Neither Bentham nor Epicurus advocated hedonism. So in
order to avoid some of the controversy, I think a more appropriate
word is happiness, rather than pleasure. We all seek happiness, in
the sense that we wish for peace, health, safety, and spiritual
fulfillment.
More
on Pleasure or Pain next time...
Labels:
Epicurus,
Jeremy Bentham,
pleasure v pain,
utilitarianism
Sunday, January 31, 2016
Big Snow of January 2016
Struggling to clear the bird feeder and path to the firewood. We got 40.5 inches (just over one meter).
Wednesday, January 27, 2016
Philosophy for Kids—Part 2
What
is exciting about these experiments in philosophy is that educators
have noted definitive benefits that kids derive from philosophical
discussions. For example, students' reading and communication skills
improve. Their critical thinking skills improve, as they learn to
develop reasoning and sound arguments. The value in these kinds of
open-ended questions is that—like most all questions in
philosophy—they have no right/wrong answers. This is valuable for
kids, because it encourages them to break free of the limited mental
framework of multiple-choice standardized tests.
When
kids become exposed to philosophy in this manner, they begin to
change their way of thinking and expressing themselves. They learn
what it means to become a little skeptical and begin to question
things, without it causing them to feel either cynical or helpless.
They develop confidence without hubris. They begin to exercise
independent judgment and self-correction, and even develop a respect
for diversity and exhibit empathy for others. Are those not
advantageous qualities for anyone to acquire?
Consider
these two comments from 5th graders who became exposed to
philosophical discussions: “I've started to actually solve
arguments and problems with philosophy. And it works better than
violence or anything else.” And another 5th grader who
participated in a discussion of the possibility of time travel: “Time
is different for us than it is for the universe, because 100 years
passes in a flash for the universe, but seems like a long time to
us... so time is a bit like a feeling.” Talk about an insightful
comment!
Reading
these articles about encouraging grade schoolers to explore the true
nature of things via philosophical discussions gave me lots of
encouragement... on at least two fronts. First, it paints a very
optimistic picture of what can happen when kids are introduced to
open-ended thinking. I believe this can be a very effective antidote
to an atmosphere in our schools that stresses standardized tests,
which encourage narrow thinking and a viewpoint that emphasizes
right/wrong responses which quickly are forgotten, shortly after the
test is over. Valuable skills such as critical thinking, forming
valid arguments, exercising discernment, and respecting diversity are
too rare in our classrooms—let alone in the wider society.
Second,
this news encourages this old hermit to keep plugging away at
studying philosophy. If a 10-year-old kid can get into it, I should
be able to. It's also nice to have it pointed out that I don't need
to master the inscrutable prose and thick thinking of Descartes or
Hegel. Yes, they have challenging and probing ideas and questions
that tax my brain and it's worth doing so, but it's nice to be
reminded that some of the same learning experience can be had by
asking an elementary question such as: “Can you be a good person if
you've done bad things?”
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