Inquiry, Evidence, and Argument
Powerful tools to determine what is
Powerful tools to determine what is
(by Leland R. Beaumont)
Inquiry,
evidence, and argument are the powerful tools we use to accurately determine what
is. They provide foundation, stability, and balance to our human spirit's
ambitions, aspirations, optimism, hopes,
imagination, and distortions. They are the tools we use to test
assumptions and understand cause-and-effect relationships in the world around
us. The goal is accuracy in facts, analysis, reason, and conclusions.
Facts
are stubborn and the pen is mightier than the sword. Embrace facts as your
friends while maintaining a healthy skepticism. Be prepared to reevaluate your
opinions, interpretations, beliefs,
assumptions, and conclusions as new information, evidence, or analysis
becomes available or is better understood. Develop, refine, and apply your
own theory of knowledge to make your own best
decisions. Stay curious.
Definitions
Inquiry:
Evidence:
Argument:
Valid logic
and the scientific method help us understand what is,
while fallacies
and any mistake in reasoning
distort our perception and obscure our
thinking. Our minds are wired to select, interpret, and even distort, evidence supporting the hypothesis
“I'm OK”. Every day we are subjected to manipulations, the influence of
self-interested parties, factual and logical errors, opinion presented as
fact, hype, and a variety of distortions.
Writing
and other communications can be evaluated using the criteria of: evidence
provided, factual accuracy, credibility of references, logical validity,
depth of analysis, innovation and insight, relevance and significance,
balanced point of view, narrative skill, clarity, and presentation.
Good writing is clear thinking made visible. Learn to evaluate what you see,
read, and hear; think critically, ask questions and draw your own
conclusions.
Describing Uncertainty
It is
authentic and informative to describe the level of uncertainty when
communicating information. Have the courage and authenticity to say: “I don't know”, or: “This
is a rough estimate” or simply “This is what I believe”. We face measurement
uncertainty, estimation error, sampling error, limited evidence, ambiguous
evidence, anecdotal evidence, conflicting evidence, non-representative
evidence, disputed evidence, misinformation, disinformation, inference,
extrapolation, tradition, alternative points of view, the not-yet known,
biased information, parochial points of view, taboos, and the unknowable when
seeking answers to so many questions. Distinguish between undisputed fact,
widely accepted fact, theory, expert opinion, hypothesis, minority opinion,
filtered information, assumptions, disingenuous statements, biased
information, dogma, faith, propaganda, and speculation when
reporting information, engaging in dialogue, or making arguments. Separate anecdotes from systematic studies. Consider how
well the evidence represents an larger conclusion. When drawing conclusions
from a set of premises, comment on the level of certainty of each premise and
the soundness of the logic leading to each conclusion. It is a fact that
2+2=4 and that one weather report forecasts a 60% chance of rain for
tomorrow. Use error bars and
significant figures to convey the range of uncertainly. Carefully distinguish
what you do know from what you do not know. Separate observation from
interpretation. Scientific reports properly include error bars, forecasts and
estimates include confidence intervals and ranges, and opinions reflect only
a personal point of view that may not be widely shared or well considered.
Critical Thinking
Critical thinking—thinking
directed toward solving problems—involves seeking evidence, closely examining
reasoning and assumptions, analyzing basic concepts, and tracing out
implications of what is said and what is done. Knowing the rules of logic and
being alert to their fallacies is the first step in
critical thinking. Critical thinkers consider a variety of questions when
evaluating information and drawing conclusions. For example:
These
considerations suggest specific questions such as:
Critical
thinking is not negative thinking. It is careful thinking directed toward
deep understanding and insight. It recognizes that the obvious is not
always true, and many things that are true are not at all obvious.
Evaluating Evidence
Evidence
is often ambiguous or conflicting and always has to be evaluated, analyzed,
and interpreted. Evidence is most reliable when:
Also,
take care to separate observation from interpretation to avoid
drawing unfounded conclusions. Is that clear liquid water or vinegar? Is that
attractive woman he is with his wife, daughter, co-worker, assistant, boss,
or mistress? Have the people stopped asking questions because everything is
OK or because inquiry is being punished or otherwise surpressed? Does
the sun move across the sky, or does the earth move past the sun? What are
alternative explanations for what we are seeing? Consider this amusing story where interpretation gets well
ahead of observation.
Rather
than examining evidence first hand, we often rely on secondary information
sources. These include gossip, rumor, hearsay, conversation, the Internet,
and information provided by various luminaries and authorities available as
publications, speeches, presentations, advertisements, endorsements, radio
and TV programs, and news items.
The
English language use of the word “authority” has two very different meanings.
One meaning describes positional power—such
as the right to control, command, or determine—and the other describes
expertise—an accepted source of information. Evidence obtained from an
authority has to be carefully evaluated based on the expertise of the
authority, while respectfully disregarding the power, influence,
fame, charisma, attachment, or appeal of the authority. Trust and verify.
Exercise critical thinking. A common and seductive fallacy is an appeal to authority.
We are often mislead because of a natural tendency to trust
some people and distrust others.
An
authority often presents only a single point-of-view, and too often this
point-of-view advances a vested interest. One example of this is an Internet
site claiming to provide expert information on sleep problems as a public
service. However, the web site is created, paid for, and edited entirely by
the manufacturer of a particular prescription drug sleep aid. This is a
manipulative marketing tool, disguised as a source of objective information.
It uses factual statements to present a false message. Examine a variety of view points
and apply critical thinking to help evaluate information provided by an
authority, or even by an aligned group of authorities.
Take
particular care to evaluate the reliability of claims of divine or religious
experience, pronouncements by authorities, appeals to common sense, the
obvious, and other situations where information or conclusions are claimed to
be self-evident, beyond question, or beyond our comprehension. When a person
in power responds with a preemptive dismissal—refusing to seriously consider
an inquiry, or replying without responding by using power,
humiliation, ridicule, insult, intimidation,
distraction, obfuscation,
condescension, or humor—it is often because the evidence is absent or
unsubstantiated. Arrogance, belligerence, shouting, sneering, and repetition do
not validate evidence, instead these distractions should raise suspicions.
Confident experts typically welcome critical examination and discussion of
their findings. Charlatans do not. Retain a healthy skepticism. Challenge
authority as needed to understand and evaluate their claims and assess
evidence. Challenge claims with a respectful and tactful request to “show me”
and “help me understand”.
Evidence
can lead to dramatic conflicts with power. Consider the disputes
astronomer Galileo Galilei had with the Pope over the evidence Galileo
gathered to demonstrate that the sun, not the earth, was the center of the
solar system. Galileo observed the moons of Jupiter, the phases of Venus,
movement of sunspots, and light and shadow on the moon through his telescope.
This evidence convinced him that the earth revolved around the sun.
In 1630
Galileo completed his book Dialogue Concerning the Two Chief
World Systems
in which the Earth-centered Ptolemaic model and the sun-centered Copernican models
are discussed and compared. After the book was printed in 1632 Pope Urban
VIII forbid its distribution; the case was referred to the Inquisition and
Galileo was summoned to Rome.
In 1633
Galileo was formally interrogated for 18 days and on April 30 Galileo
confessed (disingenuously no doubt) that he may have made the Copernican case
in the Dialogue too strong and he offered to refute it in his next book. The
Pope declined this offer and decided that Galileo should be imprisoned
indefinitely. Soon after, with a formal threat of torture, Galileo was
examined by the Inquisition and sentenced to prison and religious penances,
the sentence was signed by 6 of the 10 inquisitors. In a formal ceremony at
the church of Santa Maria Sofia Minerva, Galileo renounced his errors under
oath. He was then put in house arrest in Sienna. Galileo had the courage to
speak truth to power, and the wisdom to recant and save
his life.
Galileo
remained under house arrest, despite many medical problems and a
deteriorating state of health, until his death in 1642. Finally On October
31, 1992, the Roman Catholic Church admitted that it had erred in its
359-year-old persecution of Galileo.
And then
there was “Watergate”.
On the
night of June 17, 1972, five men were arrested for breaking into Democratic
National Convention offices, apparently to repair illegal wiretaps that had
been installed on a previous occasion. Republican leadership denied any
knowledge of the wiretap. However, Washington Post reporters Carl Bernstein
and Bob Woodward relentlessly pursued the story, skillfully interviewing many
frightened people, stitching together bits of evidence, gathering facts,
posing well formed questions, and finally breaking the story wide open. As a
result, on August 9, 1974, President Richard M. Nixon resigned the presidency
of the United States to avoid further investigation of his involvement and a
likely impeachment.
Both of
these examples rely on the fallacy of “appeal to authority”
where the argument is based on the authority, power, and position of the
person making the claims, e.g. the pope and the president, rather than on
observable phenomenon. This presents the difficult choice of deciding based
on who you know or what you know.
Facts
are stubborn. When you have to choose between following the evidence and
following orders, do your homework and go with the evidence. Reject the claim
that “might makes right.” The facts are likely to prevail in the long term.
Have the courage to speak truth to power. The
entertaining Hans Christian Andersen story, The Emperor’s New Suit,
reminds us to follow the evidence and retain a healthy skepticism.
Much of
the information we are exposed to is irrelevant, distracting, distorting, and
not suitable evidence. These various non sequiturs—inferences or
conclusions that do not follow from the premises—were recognized and named by
the ancient Greeks, yet they continue to be prevalent today. Here is a
brief description of these seductive fallacies of irrelevance:
It is
surprising that these fallacies are so common, even though they have been
well known for thousands of years. When someone persists in obscuring
evidence with these fallacies, they are being careless, ignorant, biased, manipulative, or malicious.
Don't be persuaded.
Recognize Faulty
Reasoning
Know the
rules of logic and be alert for their fallacies. Even if evidence is accurate
and relevant, it can be easily used in a variety of invalid arguments to draw
wrong conclusions from improper inferences. Resolve ambiguity and challenge
equivocation. Recognize and avoid these fallacies of ambiguity:
Awake and Aware:
Our
perceptions are more accurate when we are alert, aware, and conscious of our
environment. A good night's sleep, attention focused on the present task, and
a clear head help us to see the world as it is. Fatigue, alcohol, drugs,
stress, strong emotions, chaos, multitasking, and distractions all impair our
senses and judgments. Trust evidence that was gathered with a clear head.
Quotations:
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