Critical Thinking about Science in The Media by Brady Caldwell
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Transcript of Critical Thinking about Science in The Media by Brady Caldwell
Calm Islands of Truth Seeking in Stormy Seas with Oceans of
EmotionSchools - Teach true statements Learn skills to find true statements Research to find new true statements
WHAT IS KNOWLEDGE? KNOWLEDGE = Justified True Belief
(at 03:00) ”What was it all for?” ”Knowledge” ”Also, to show what was possible” http://www.esa.int/Our_Activities/Space_Science/Rosetta/Rosetta_the_ambition_to_turn_science_fiction_into_science_fact
Politics is NOT Science
Politicians make policies on consensus versus Science checks the evidence and logic of arguments
There IS a difference
Majority Wins Evidence & Logic Valued
I’m Right!
I’m Right!
I’m Right!
-----------------------------
So, VOTE! VOTE! VOTE! for ME! ME! MEEEEEE!
FOR:
Scientific Evidence 1?
Scientific Evidence 2?
-----------------------------
Logical Conclusion 1?
AGAINST:
Scientific Evidence 3?
Scientific Evidence 4?
-----------------------------
Logical Conclusion 2?
Business PPPs are NOT Scientific Presentations
information poor to information rich
Businesses sell products to make money versus Science checks the evidence and logic of arguments
There IS a difference
http://www.presentationsteknik.com/varldens-basta-powerpoint-2/
Death by Business PPPs
Life by Science PPPs
I’m Right!
I’m Right!
I’m Right!
-----------------------------
So, BUY! BUY! BUY!
FOR:
Scientific Evidence 1?
Scientific Evidence 2?
-----------------------------
Logical Conclusion 1?
AGAINST:
Scientific Evidence 3?
Scientific Evidence 4?
-----------------------------
Logical Conclusion 2?
Information Rich ”Beautiful Evidence” in Science PPPs
http://www.edwardtufte.com/tufte/books_behttp://old.intelligencesquared.com/events/Edward-Tufte-Beautiful-Evidence
http://www.edwardtufte.com/bboard/q-and-a-fetch-msg?msg_id=0001yB
• Like a science paper or newspaper
• high information content
• Texts, graphs, images, data - mixed together
• for & against arguments on same slide
• NO bullit points / but whole sentences
• Oops! ;-)
http://wattsupwiththat.com/2013/12/10/dr-judith-lean-lecture-at-agu/
Today’s Scientific Presentations – Information Rich
http://periodictable.com/Elements/Radioactive/
Don’t be a sponge .... pan for the gold nuggets!
Critical Thinking: Why bother?
Would you rather be a mental puppet of who ever you happen to encounter?OR
Have a method to decide which opinions to believe or reject!
Critical Thinking
1. Skeptical – ”Is it true?”
2. Calculate – Check the facts ... AND ... check the argument
Critical ThinkingIs It True?
(Being Skeptical ...then using...“The Method”)
Intention
Premises
Conclusion
XXXXX XXXXxxx xxx xx x x xx x x xxxx xxx xxxx. xxxxx xxxx x xx x xx xxxxx x x xxx xx xxxx xxx xxxxx xxxxx x xxx xx xx xx. xxx x xx x xxx x xx xx xxxxxxxx xxx xxx xxx x xxxx . xxxxx xx xxxx xxx xx x x xx x x xxxx xxx. xxxx xxxxx xxxx x xx x xx xxxxx x x xxx xx. xxxx xxx xxxxx xxxxx x xxx xx xx xx. xxx x xx x xxx x xx xx xxxxxxxx xxx xxx xxx x xxxx xxxxx xx xx.
Critical thinking about Media Science news stories
Critical Thinking Question:
Are the premises of science news stories true?
If a cat has all white fur then it is a white cat.
The cat has all black fur.
-------------------------------------------------------
Therefore it is a white cat.
“When the facts change, I change my mind. What do you do, sir?” – attributed to John Maynard Keynes (economist)
A common human argument
check the facts not the feelings
check the evidence not the emotions
What we often do with new facts we don’t like.
A rational mind changes its conclusions when new facts and arguments arise.
”... Students should develop crtitcal thoughts regarding their own results, other’s arguments and different information sources ... critical of information and arguments which students meet in various sources and discussions to do with science in society with connections to biology/chemistry/physics...” - Extract form the Swedish Primary School curriculum in science (2011).
Critical Thinking for schools
Deductive arguments
P1 All men are mortal.P2 Socrates is a man.____C Socrates is mortal.
Inductive arguments
P1 If Socrates is a man, then he is most likely mortal.P2 Socrates is a man._________C Socrates is probably mortal
Plausible arguments
P1 Ms A is a genuine expert about man's mortality.P2 Ms A proposes that Socrates is mortal.P3 Socrates is a man.P4 That ”Socrates is mortal” is consistent with what other experts propose. P5 “Socrates is mortal” is consistent with the available evidence.________C ”Socrates is mortal” can be accepted as a plausible argument.
Critical Thinking What is a “good” argument?
Socrates 469 BC – 399 BC Athena – Goddess of Wisdom
A “good” argument has all true premises.
https://yourlogicalfallacyis.com/
Avoid these … … like the Plague!
http://onegoodmove.org/fallacy/toc.htm http://www.fallacyfiles.org/whatarff.html
The Law of Similarity : appearance = reality
If it looks like a lion, it is a lion...Run! ...or you will be lunch!
If we watch a hurricane on TV ... worry about storms! If read about a flood in NY ... the seas are rising!
Why We Worry (Lion-
Worriers survived and reproduced)
Human ”GroupThink” is an Evolutionary Stable Strategy (stay in the group, run with the herd ... and you
survive and reproduce)
Are we are running with the herd ... again ... ...& stampeding over the cliff of missing scientific
evidence?
The Carta Marina by Olaus Magnus (1490-1557) is the earliest detailed map of the Nordic countries.
”Here there be Dragons” – when emotion replaces evidence in Science
The Conjuror, by Hieronymus Bosch, painted 1475-1480 to convey concern for human gullibility.”Bosch seems to admonish his viewers that the world is full of deceivers we should not trust
yet who succeed in taking advantage of us with all kinds of tricks.”http://suite101.com/article/meaning_in_the_conjurers-a162088
Watch the peas under the Media Science shell game
History of popular folly (1841) by Scottish journalist Charles MacKay, he proposed that crowds of people often behave irrationally
Scares in History
economic bubbles (tulip mania), alchemy, crusades, witch-hunts, prophecies, fortune-telling, magnetisers (influence of imagination in curing disease), haunted houses, popular follies of great cities etc.
“Men, it has been well said, think in herds; it will be seen that they go mad in herds, while they only recover their senses slowly, and one by one.” – Charles McKay (1841)
Has all this happened many times before?
http://www.amazon.com/Extraordinary-Popular-Delusions-Illustrated-ebook/dp/B003I84MBO/ref=sr_1_1?s=books&ie=UTF8&qid=1374246351&sr=1-1#reader_B003I84MBO
Humans make more mistakes
Prohibition – 1920sEugenics – 1910s Lysenkoism – Russia1950s
The Great Tulip Bulb Mania– Holland 1637
The South Sea Bubble– England 1720
The Railway Stocks Bubble– USA 1893
BlockersSkeptical ScientistsSkeptical Journalists
PushersActivist ScientistsBig BusinessGreen GroupsThe MediaPoliticians
NEW SCARE
Defining parts of a Scare* A new type of threat.* Something anyone might be exposed to.* A large undefined uncertainty of effects.* Society's response is out of all proportion to the reality of the threat.
Common stages of a Scare* Appearance of widely accepted scientific evidence* Obsessive media coverage* Massive response from politicians.* New laws and restrictions enacted.* Social damage - fear/hysteria//panic* Economic damage - $M/$B/$T spent* Scientific evidence & reasoning then accepted as fundamentally flawed.* Fear subsides and money all wasted.* New & different scare begins again.
”... interests behind behind views from different sources...”
http://www.amazon.co.uk/Scared-Death-Global-Warming-Costing/dp/0826486142
http://www.npr.org/blogs/codeswitch/2013/08/26/215761377/a-history-of-snake-oil-salesmen
WHY? -A BIT OF HISTORY Snake Oil Salesmen still alive &
well; bigger & ”better” 100 years later in the 21st Century
So ... check the evidence & check the arguments when the health-energy-environment-technology snake oil salesmen & snake oil saleswomen visit your neighbourhood ... today.
Or, are these ”salespersons” just … caring & misinformed … or ”morally superior” … or … GroupThinkers or …???
”Take a knee”: Natural dangers are real but fear about the world is a choice.
http://www.youtube.com/watch?v=OhVKG4QCQYg
The Scientific Method
http://wattsupwiththat.com/2014/01/21/the-scientific-method-and-climate-science/
http://skepticalswedishscientists.wordpress.com/scientific-method/
Deeper into the Scientific Method What is a ”good” hypothesis? – The Criteria of
Adequacy
http://www.amazon.com/How-Think-About-Weird-Things/dp/0073386626/ref=la_B001ILHGPC_1_4?s=books&ie=UTF8&qid=1390044470&sr=1-4
Opposing viewpoints - seek them out! Prepare to be unpopular in following the thin red line of truth
Ask probing questions Real Science doesn’t follow fashionable trends or popularity ...
it follows the scientific method and logical arguments.
http://www.debunkosaurus.com/debunkosaurus/index.php/Debunked_%26_Exposed
Opposing viewpoints - seek
them out! Prepare to be unpopular in following the
thin red line of truth
Ask probing questions Real Science doesn’t follow fashionable
trends or popularity ... it follows the scientific
method and logical arguments.
Risks That Most People Are Comfortable With
Floods Lightning
Heat
Earthquakes
Cold
Storms
The Paling Risk Perspective
Risks around 1 in a million to 1 in 10,000 that have odds in this green "Home Base Zone" should certainly not be ignored but should not be singled out for alarmist media headlines.
http://www.riskcomm.com/
.
Relative Risks & Risk Consequences human made risks vs other accepted daily natural risks
Risks of dying next yearForces of Nature
/http://www.riskcomm.com/visualaids/riskscale/example.php
http://www.riskometer.org/pages/riskometerExposures.html
Checking up on the Relative Risks with Chemicals
R = P x C (Risk) (Probability) (Consequences / $ )
The Black PlagueEurope, 1350
Meteorite StrikeBird Poop Injuries
Wet-by-Rain Injuries
Natural Frequencies
25 in 100
Tally marks
30 000 BC
Fractions
¼
Pythagoras
550BC
ConditionalProbabilities
0.25
Pascal & Fermat
1654
Percentages
25%
Metric system
1800s
Risk Probabilities
Try to find out risks in natural frequencies, eg. 2 in 1000, 5 in 10 000 etc.
Learning Liberty"I disapprove of what you say,
but I will defend to the death your right to say it”- Evelyn Beatrice Hall in Friends of Voltaire (1906)
A Right to the Freedom of Speech
But ... a right to not be offended ???
Hollywood Futures = Catastrophic Futures ?
http://www.youtube.com/watch?v=EdzpNH0DNZ4http://www.youtube.com/watch?v=CZIt20emgLYhttp://www.youtube.com/watch?v=QAEkuVgt6Aw
http://www.dailymotion.com/video/x175qup_bbc-this-world-don-t-panic-the-truth-about-population-h264-1280x720-aac-rmac_news
An even better future world – Emotions versus …… Evidence: everybody is getting richer
An “Evidence-Based Science” trend to a bright happy future society
More of everything:• More energy use• More consumption• Cleaner environment • More people• More live in cities• More wilderness• Healthier people• Happier people• Longer lives
(Check the evidence ...... not the emotion :-) (Check the facts ...... not the fiction :-)
http://www.rd.com/best-of-america/cheer-up-17-reasons-its-a-great-time-to-be-alive/http://bishophill.squarespace.com/blog/2012/4/2/optimistography-josh-159.htmlhttp://www.rationaloptimist.com/blog/reader's-digest.aspx
Science...a game of shadows. Let’s play ... shall
we?
http://www.youtube.com/watch?v=p3jVKDd3nAA
So, ... ”You know my methods ...” (The Scientific Method & Logical Arguments)
at 1:24 http://www.youtube.com/watch?v=l7d_-A1ju9M
http://skepticalswedishscientists.wordpress.com/scientific-method/
Good Luck!
Good vs BadHappy vs SadClean vs DirtyGreen vs BlackCheap vs ExpensivePractical vs ImpracticalRenewable vs Non-RenewableAbove Ground vs Below GroundEnergy Sparse vs Energy IntensiveEnvironmentally Friendly vs Not Environmentally Friendly
The Energy Resources Name Game
Rhetoric vs Facts
http://www.energytribune.com/11720/whatever-happened-to-peak-oilhttp://www.guardian.co.uk/commentisfree/2012/jul/02/peak-oil-we-we-wrong
Peak Oil? … good news … explained as bad news?
http://www.world-grain.com/articles/news_home/World_Grain_News/2014/07/EU_expects_above_average_cerea.aspx?ID=%7b59FF2C2B-A335-4DB7-BBE6-5FFD766B8D68%7d&cck=1http://www.fao.org/worldfoodsituation/csdb/en/
Some Evidence Base for Food Predictions
http://wattsupwiththat.com/2013/07/22/paul-ehrlich-wrong-again-world-cereal-production-set-to-reach-historic-high/#more-90290
http://spectrum.ieee.org/static/the-age-of-plenty
http://www.science20.com/news_articles/looming_population_implosion-108334http://www.theclimatescam.se/2013/04/14/ingen-befolkningsexplosion-i-sikte/
Only 8 billion people maximum ... and already food enough for all
http://rogerpielkejr.blogspot.se/2013/02/noaa-slays-billion-dollar-disaster-meme.htmlhttp://news.nationalgeographic.com/news/2009/07/090731-green-sahara.htmlhttp://stevengoddard.wordpress.com/2012/11/19/sea-level-rise-less-than-0-7-mmyear-and-falling/http://wattsupwiththat.com/2012/10/01/dr-ryan-maue-releases-new-hurricane-frequency-data-showing-a-negative-trend-in-the-last-30-years/http://www.c3headlines.com/2013/week3/index.html
Other CO2 -Global Warming inconvenient
truths
Sea level rises slowing
Deserts greening & Earth too
Lower atmosphere cooling
Hurricanes decreasing
No climate crop losses
Temps go down as CO2 goes up
science textbooks say, but ...
"Nothing in biology makes sense, except in the light of evolution." - Theodosius Dobzhansky 1973
Why?
Are Treelines ”moving uphill” because of rising temperatures? ... or changes in rainfall, CO2 concs, biologically-available nitrogen (and other nutrients), and
even winds?
http://climateaudit.org/2007/01/18/swedish-tree-line/
Little pine tree circles "o" have been popping up naturally at 1000 AD (top), 3500BC, 6000BC (bottom)
http://www.geol.lu.se/PERSONAL/H/images/BER2005.pdf
”Toxic” Plastic – bad ...or not?
http://oregonstate.edu/ua/ncs/archives/2011/jan/oceanic-%E2%80%9Cgarbage-patch%E2%80%9D-not-nearly-big-portrayed-media
http://www.pnas.org/content/111/28/10239.abstracthttp://www.theverge.com/2014/6/30/5859060/ocean-plastic-millions-of-tons-gone-missing
http://junkscience.com/2014/07/21/how-much-plastic-in-the-ocean/#more-61812PJTV - Fantasy Island: Scientist Slashes His Estimate of Ocean's Plastic Dumps
https://www.youtube.com/watch?v=37vWKrQwRLQ
Pacific Ocean – plastic rubbish dump or not?
Radon Risky ... or not? The Scientific Evidence Hunt
http://www.gasdetection.com/interscan-in-the-news/magazine-articles/radon-silent-killer-maybe/http://www.enviroliteracy.org/article.php/1086.htmlhttp://www.vredevoogd.com/blog/bid/187162/Indoor-Air-Quality-Problems-The-Other-Side-Of-The-Radon-Argument
http://www.jstor.org/discover/10.2307/3703373?uid=3738984&uid=2&uid=4&sid=21103796494017
http://www.sciencedaily.com/releases/2008/03/080325122807.htmhttp://hotair.com/greenroom/archives/2009/12/13/the-epas-other-hockey-stick-the-radon-scam/
http://www.bmj.com/content/330/7485/223
http://www.cato.org/publications/commentary/should-homeowners-consider-radon-threat-false-alarm
http://sciencepolicy.colorado.edu/publications/special/honest_broker/naturereview.pdf
The Honest Broker (How scientists should interact with politics?)
http://sciencepolicy.colorado.edu/admin/publication_files/resource-2710-2008.19.pdf
Ambrogio Lorenzetti (1338-40) Allegory of Good Government, Plazzo Publico, Siena, Italy
Pure Scientist Issue Advocate Honest BrokerScience Arbiter
The Honest Broker seeks to enable the freedom of choice for a decision maker. Non-Politicized Science Roles Politicized Science Roles
Stealth Advocate
So then, I’ll see you out there, soaking up more of the sunny joy of living,making our fantastic wonder world even better, & proud of being amazing Homo sapiens who with science and reason, are increasingly showing signs of using their rational minds
Brady on the coral cay : Lady Elliot Island, South Coral Sea, Great Barrier Reef, Australia