Saturday, June 20, 2026

Who is a pseudoexpert?


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

There is a useful article by Joffrey Fuhrer et al. in Frontiers in Psychology on November 11, 2021 titled Pseudoexpertise: A Conceptual and Theoretical Analysis. Their abstract says:

 

“Some people publicly pretend to be experts while not being ones. They are pseudoexperts, and their presence seems to be ubiquitous in the current cultural landscape. This manuscript explores the nature and mechanisms of pseudoexpertise.

 

We first provide a conceptual analysis of pseudoexperts based on prototypical cases of pseudoexpertise and recent philosophical work on the concept of expertise. This allows us to propose a definition that captures real-world cases of pseudoexpertise, distinguishes it from related but different concepts such as pseudoscience, and highlights what is wrong with pseudoexpertise.

 

Next, based on this conceptual analysis, we propose a framework for further research on pseudoexpertise, built on relevant empirical and theoretical approaches to cultural cognition. We provide exploratory answers to three questions: why is there pseudoexpertise at all; how can pseudoexperts be successful despite not being experts; and what becomes of pseudoexperts in the long run. Together, these conceptual and theoretical approaches to pseudoexpertise draw a preliminary framework from which to approach the very troubling problem posed by persons usurping the capacities and reputations of genuine experts.”

 

I have discussed one well-known pseudoexpert in a post on October 7, 2025 titled Surrounded by bad books from Thomas Erikson. In that post I mentioned that:

 

“An article edited by Lotten Kalenius from the Swedish Skeptics Association (VoF) on April 15, 2024 is titled One of Sweden’s biggest scientific bluffs which discusses the book and Thomas Erikson. It has a section titled Is Erikson an authority in behavioural science? When he was looked up: 

 

‘So, we used Ladok, the register of everyone who has studied at Swedish colleges and university, to see if we could find the courses taken by Erikson. There was no-one with his name and birthdate registered. In fact, Erikson’s professional background is in sales, first for the bank Nordea and then running his own business training salespeople. It is most likely that his only educational background is, at best, the Swedish equivalent of a high school diploma.’ 

 

Lotten noted that Erikson was named Fraudster of the Year in 2018 by VoF and also added:

 

“He has as much right as my poodle to call himself a behavioural scientist.”

 

Guests on the Coast to Coast AM late-night radio show often are pseudoexperts who discuss their poorly researched books or videos.

 

The cartoon was adapted from the March 17, 1897 issue of Puck magazine at the Library of Congress.

 

 

Thursday, June 18, 2026

Polystyrene foam revealed by a demonstration


 

 

 

 

 

 

 

 

 

 

 

 


 

 

 

 

 

 

 

 

 

 

  

 

 

 


 

 

 

 

 

 

 

 

 

 

 

 

 

   

There is an interesting article by Joe Schwarcz at the McGill Office for Science and Society on June 9, 2026 titled The Case of the Missing Coffee Cup. He describes a demonstration:

 

“It is a demonstration that never fails to draw oohs and ahhs from students. Pour a small amount of acetone into the bottom of a beaker and drop in a foamed plastic coffee cup. It instantly seems to melt into the liquid and within seconds just vanishes.

Of course, matter cannot just vanish, but it can change from one form into another. Like sugar dissolving in water, the plastic dissolves in the acetone. How can so much plastic dissolve so quickly in so little acetone? Because there is actually very little plastic in that coffee cup.

Yet that little plastic has been expanded by being filled with gas bubbles, much like blowing up a balloon. As the plastic dissolves, the air is released, and we have an apparent magical effect.”

I repeated it using a cubical sample of polystyrene foam insulation placed in a glass custard cup as shown above. When acetone was added, it became just a small puddle. That got even smaller after the acetone evaporated.

A Wikipedia page for Polystyrene has a section on Expanded Polystyrene (EPS) – commonly known as Styrofoam.

 

 

 

 

Wednesday, June 17, 2026

Joy is the most enjoyable path to learning


 

 

 

 

 

 

 

 

 

 

 

There is a useful 2024 book by David Novak titled How Leaders Learn: Master the habits of the world’s most successful people. Google Books has a preview of its first sixty pages and six chapters.

 

On page 143 David says that:

 

Joy is our source of purpose, passion, mission – and the most enjoyable path to learning.

 

Of course, pursuing your joy requires that you know where to find it in your life and work. Not many people consider what makes them happiest, beyond things that aren’t necessarily within their control. When I wrote Take Charge of You with sports performance coach Jason Goldsmith, we tackled this question at the start. If you’re going to coach yourself to success, you need to know what you’re coaching yourself toward. We suggested people start by mining their experiences for joy blockers (we’re a bit better at remembering negatives) and then shift and search for their joy builders.

 

Try asking yourself this: What’s getting in the way of my joy? If you’re not sure, think back to some of your worst days, or a job that frustrated you or made you miserable or unfulfilled. What made it so difficult for you? Be as specific as possible. Did you want to be in a different role? Was there one specific thing that you were required to do that you dreaded doing? Was there a person or team you had to work with that brought you down?

 

I’m sure you can think of examples. We all hate our jobs sometimes. Even if you can think of examples, though, you may never have deeply reflected or logically analyzed why you were unhappy in a particular situation or environment.

 

I wish I could give a good example of this kind of reflection from my own life, but I’ve rarely felt that way. And I don’t think most active learners have much experience with it either, at least not for long. When active learners find themselves in a situation that’s too full of their joy blockers, they learn their way out of it or they learn their way around the blockers fast. They know if they don’t, they’ll stagnate. They also know that just because a job or situation doesn’t come preloaded with joy builders doesn’t mean it’s the wrong choice. It just means it’s up to them to find a way around the blockers.

 

….What are your joy builders? And how can you pursue them? Think about some of your best days or jobs – times when you felt especially purposeful, powerful, optimistic, and joyful. What was happening? What were you doing? Who were you doing it with? What specific things made you feel happy, excited, or energized? Try looking at your joy blocker examples and asking, What would have made me happier in those situations?”

 

My cartoon was assembled using a brick wall and stairs from OpenClipArt.  

 

 

Tuesday, June 16, 2026

Preaching by remixing or plagiarism?


 

 

 

 

 

 

 

 

 

 

 

I have been reading a 2026 book by David Epstein titled Inside the Box: How constraints make us better. At Google Books there is a preview up to page 23. He describes a different viewpoint about plagiarism in preaching. Chapter 6 is titled The Remix of Everything. Selected from pages 87 to 93, he says:

 

“Keith Miller was working on his English PhD at Texas Christian University in 1983, analyzing the rhetorical techniques in Martin Luther King Jr.’s sermons, when a friend alerted him to something strange.

 

The friend was studying at Vanderbilt University’s seminary, and had come across a 1968 King sermon –‘The Drum Major Instinct’ – that had a lot in common with a 1952 sermon (‘Drum Major Instincts’) by the prominent preacher J. Wallace Hamilton. Both use similar language to describe the human instinct to want to lead the parade and be recognized.

 

Miller assumed this was a one-off instance, until one day when he was perusing books in his father’s office. Rev. Ernest Miller was the head of a congregation in McAllen Texas, right along the border of Mexico, and he had a large library. Keith Miller was flipping through a text of old sermons when he landed on another with the same exact title as a sermon that King delivered later. It also used the same opening anecdote. Maybe ‘The Drum Major Instinct’ wasn’t an isolated instance after all.

 

Miller asked his father to list notable preachers. He took the list to the TCU seminary library and combed books of their sermons. Then he went to Atlanta to interview Martin Luther King Sr. and King’s mentor, Benjamin Mays, a minister and the former president of Morehouse College, from which King graduated at nineteen.

 

The more sermons Miller read, the more he realized he was rereading. He found shared titles, structures, anecdotes, and turns of phrase between King’s sermons and those of other preachers. Almost every sermon and essay of King’s he could find – even his Nobel Prize lecture – contained at least some historical antecedent. Sometimes it was the order of specific points, or common literary reference, or exact descriptions of a Biblical lesson. Sometimes it was all of the above. Take, for example, the sermon ‘What Is Man?’

 

….The more Miller read, the more tangled the web of influence and borrowing appeared to be. But he also found that King wasn’t unique; he was representative. Had Miller been a noir-film detective, his cork-board of evidence would have been completely obscured by red string connecting preachers and their sermons. King’s version was just the latest iteration in a deep ‘What Is Man?’ lineage.

 

….Keith Miller ended up writing not only a dissertation but a full book exhaustively tracing the source material of King’s sermons and essays; Voice of Deliverance: The Language of Martin Luther King, Jr., and Its Sources. Miller explained that King grew up in the folk-preaching tradition – beginning with watching his father – in which borrowing words was not only encouraged but expected, and language was not thought of as proprietary.

 

Excessive originality, in fact, was seen as self-centered, if not downright suspicious. The idea of ‘preaching to the choir’ – an expression that connotes a redundant message – was a good thing. Listeners expected the reinforcement and recharging of lessons with authority and familiarity, not originality. Sermons were treated like songs, shared and adapted readily for an audience that expected to hear a version of the hits. ‘My father went to seminary at the same time King did,’ Miller told me, ‘and he actually borrowed from some of the same books of sermons.’

 

The importance of borrowing has often been missed in King scholarship. Entire books have been written on the 1963 ‘I Have a Dream’ speech and not even mentioning that the famously off-script crescendo (repeating ‘let freedom ring from . . .’) was adapted from the conclusion of an address given by King’s friend Archibald Carey Jr. in 1952, which itself echoed the conclusion of a speech by investigative journalist and activist Ida B. Wells in 1893. (‘I’d used in many times before,’ King said later).

   

Borrowing was so common that mid-twentieth century preachers would occasionally pester one another to publish their sermons so that they could be riffed upon, like jazz standards. One distinguished New York City minister repeatedly welcomed King to his pulpit, after King reworked and published a version of that preacher’s own sermon.  Another pastor was an editor at a magazine that published a King homily based on that pastor’s own work. Preachers regularly accepted this from one another for a good reason: It worked. Acquaintances borrowed from each other, and from popular orators like Fosdick and Hamilton, who published their sermons and preached to millions over the radio. King purposely chose widely used material. It provided Virginia Woolf’s ‘rope’ that must be thrown to the audience if they are to coma along with something new.”  

 

….When King graduated from Morehouse and entered Crozer Theological Seminary, he was surrounded by white people for the first time. His tactic for satisfying professors fit squarely within the folk-preaching tradition: He wrote papers that remixed and repeated back the professors’ own beliefs. He graduated at the top of his class, and received a fellowship and an award given by the faculty to the most outstanding student.

 

After Crozer, King continued to refine his practice of borrowing, remixing, and building on work that he knew his audience already accepted. He did it both in environments where it was acceptable – preaching from the pulpit – and in others where it was decidedly not. Near the top of his 1955 PhD dissertation at Boston University, King highlighted one of his sources: ‘In 1952 a very fine dissertation was done in this school by Jack Boozer.’ That dissertation had been presented to the very same thesis adviser. As ever, King was building on material he knew his target audience had already approved. But. As he did with sermons, King copied some passages directly from Boozer. In the late 1980s researchers at Stanford University’s Kings Papers Project discovered the dissertation plagiarism. Soon it exploded in national headlines, and a Boston University committee was convened to determine whether to revoke King’s doctorate. Ultimately, the committee decided not to strip the degree, because King was not alive to defend himself and because the dissertation still made ‘an intelligent contribution to scholarship.’ Academic papers prize strict originality – to such a degree that they almost never connect with any audience at all. That was no use to King, and he regularly violated the norms of scholarly writing by doing what he had learned in the gospel tradition.”

 

There is an article by Josh Howerton on September 9, 2022 titled On “Sermon Plagiarism” Accusations. And rather ironically, another article by Theodore Pappas in Chronicles magazine for May 1998 titled The Life and Times of the King Plagiarism Story discusses how King’s estate charges licensing fees for using ‘his’ content. Also, there is a Wikipedia page titled Martin Luther King Jr. authorship issues.

 

The image of Dr. King came from Wikimedia Commons.

 

 

Monday, June 15, 2026

Two more silly claims that 95% of the world population fears public speaking


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

I get extremely irritated when I read claims that almost everyone fears public speaking. At Facebook on June 1, 2026 there is a post from Manish Gupta which states that:

 

“Around 95% of the world’s population has the fear of Public Speaking. It also means that only 5% have the courage to stand up in front of a crowd. Do you want to join the 5% brigade? Do you want to be a part of the select few who walk around confidently with this skill? Do you want to master this one skill which can do wonders in your life? If yes, then do call us right away!”

 

Also, in a 2022 book by Peter J. Copeland titled How to Overcome Work Stress: An Office Survival Guide it is claimed that:

 

“In fact, statistics show that some degree of fear/nervousness in public speaking affects about 95% of all speakers.”

 

But those assertions are without any backing, just ipse dixits.

 

On December 1, 2024 I blogged about Does 95% of the population experience public speaking fear? And my answer was no. There are no surveys covering the whole world. And back on December 20, 2016 I blogged about Bursting the overblown claim that 95% of Americans fear public speaking at some level. On October 23, 2025 I posted on how In the eleventh Chapman Survey of American Fears for 2025, public speaking only was ranked #46 of 67 fears at 33.7%. Detailed results from that survey are:

 

Grand Sum for Very Afraid,

Afraid, and Slightly Afraid  68.5%

Sum for Very Afraid

and Afraid                             33.7% 

Very Afraid                            15.5%

Afraid                                     18.1%

Slightly Afraid                       34.9%   

Not Afraid                             31.4%

Web Blank (Don’t Know)      0.1%

 

That Grand Sum is more than 25% lower than the 95% Mr. Gupta claimed. According to the Wikipedia page on Demographics of the United States the 2025 estimated population is 341,784,857. 21.5% are under 18, so 78.5% are over, for an adult population of about 268,300,000 adults. 33.7% of that is about 90,417,000 people who significantly fear public speaking. Or, using the Grand Sum, about 68.5% or 183,790,000 people fear public speaking at some level. Those real numbers are more impressive statistics than overstated percentages.

 

My cartoon was created in PowerPoint from a globe and monkey at OpenClipArt.

 

 

Sunday, June 14, 2026

A textbook chapter on avoiding plagiarism from a free e-book on public speaking


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The freely downloadable 2018 fourth edition of the Exploring Public Speaking e-book has a Chapter 26 titled Avoiding Plagiarism. It discusses three types: stealing, sneaking, and borrowing. Stealing is wholesale, it involves taking the entire text.

 


 

 

 

 

 

 

 

 

 

Sneaking involves shuffling the order of sentences. Borrowing is more subtle.

 

Images of a robber and shuffling cards came from Wikimedia Commons.

 

 

Friday, June 12, 2026

My dad told me to use a banana to clean my shoes, and I can’t believe it worked. Now, how do I get these chimps to stop following me around?


 

 

 

 

 

 

 

 

 

 

When I recently looked at Apple News on my iPhone I found an article by Pallavi Mehra at Apartment Therapy from June 4, 2026 with the clickbait title of My Dad Told Me to Use a Banana to Clean My Shoes, and I Can’t Believe It Worked.

 

What about side effects? That title should be followed by asking: How do I get these chimps to stop following me around?

 

The cartoon chimp and grass came from OpenClipArt.

 

Thursday, June 11, 2026

What Is Selective Mutism?


 

 

 

 

 

 

 

 

 

 

 

 

 

 

There are two articles in Toastmaster magazine that discuss an uncommon childhood anxiety disorder called selective mutism. One by Avery Matteo in the latest June 2026 issue on page 8 is titled How I Found My Voice. She said:

 

“Some of my earliest memories are shaped by my experiences with selective mutism, an anxiety disorder that makes speaking to unfamiliar people feel impossible. Public spaces were overwhelming, and even small interactions—such as asking a question to my teacher at school or expressing a need—felt out of reach.”

 

Another article by Jolene Stockman in the July 2019 issue on page 11 is titled Fitting In As An Autistic Speaker. Her third sentence said:

 

“We didn’t know it yet, but we were the founding members of Ngāmotu Breakfast Toastmasters, a club that would remain active 20 years later and took me from school kid with selective mutism to Distinguished Toastmaster and TEDx speaker.”

 

Wikipedia has an article on selective mutism, and there is a Selective Mutism Association with an article titled What is SM? There is a blog post by Anthony D. Smith at Psychology Today on March 7, 2026 titled What You Should Know About Selective Mutism. And the National Health Service [NHS] UK has a February 17, 2023 article on Selective Mutism beginning with the following description:

 

“Selective mutism is an anxiety disorder where a person is unable to speak in certain social situations, such as with classmates at school or to relatives they do not see very often.

It usually starts during childhood and, if left untreated, can persist into adulthood. A child or adult with selective mutism does not refuse or choose not to speak at certain times, they're literally unable to speak. 

The expectation to talk to certain people triggers a freeze response with feelings of anxiety and panic, and talking is impossible. In time, the person may learn to anticipate the situations that provoke this distressing reaction and do all they can to avoid them.

However, people with selective mutism are able to speak freely to certain people, such as close family and friends, when nobody else is around to trigger the freeze response. Selective mutism affects about 1 in 140 young children [~0.7 %]. It's more common in girls and children who have recently migrated from their country of birth.”

 Finally, there is a long article by Chaya Rodrigues-Pereira et al. in European Child & Adolescent Psychiatry on December 1, 2021 (Volume 32, number 10, pages 1821 to 1839) titled Diagnosing selective mutism: a critical review of measures for clinical practice and research.

 

The ‘speak no evil’ monkey image was adapted from Wikimedia Commons.  

 

 

Wednesday, June 10, 2026

Strikingly Similar is a recent book by Roger Kreuz about plagiarism and intellectual appropriation


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

There is a detailed 2026 book by Roger Kreuz titled Strikingly Similar: Plagiarism and Appropriation from Chaucer to Chatbots. An article by Anthony Lane in The New Yorker on March 22, 2026 that reviews it is titled How Bad Is Plagiarism, Really?

 

Chapter 2 of the book is titled The Plagiarism Hunters and it begins with a section on page 29 titled Copyright Traps. I blogged about traps on November 30, 2025 in a post titled What the heck is a mountweazel?

  

On June 9, 2025 I blogged about Plagiarism and speechwriting. A section in Chapter 6 of the book starting on page 159 titled Dear Graduates discusses commencement speeches. One example on Page 160 starting at the second paragraph says:

 

“In 2005, for example, the principal of Springstead High School in Florida gave an inspiring address to her graduating class. However, her remarks consisted of a word-for-word recitation of the well-known ‘wear sunscreen’ essay written by Mary Schmich. Her advice was originally published in the Chicago Tribune in 1997 and has become widely available online. However, the principal chose to preface her remarks by stating that what followed were her personal thoughts. And at other points during her speech she used the phrase ‘my advice’ to reinforce the perception that the ideas were her own.

 

To make things worse, the principal wasn’t a first-time offender. In a commencement speech delivered the previous year, she appropriated from a collection of inspirational thoughts titled ‘All I need to Know I Learned from Noah’s Ark.’ Although the provenance of these sayings is murky, she left her audience under the impression that the ideas were her own.

 

In an apology for both episodes, the principal admitted to ‘unintentional errors.’ The school district put a letter of reprimand in her personnel file and gave her a one-day suspension, although it was with pay. A state inquiry in 2007 resulted in a $1,500 fine, although she was allowed to retain her state certifications as an educator.”

 

My image was modified from this Airwheel suitcase at Wikimedia Commons.

 

Tuesday, June 9, 2026

The 2025 commencement speaker at Smith College admitted plagiarizing her speech and then relinquished her honorary degree


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Smith College held its 147th commencement on May 18, 2025. An article by Darin Zullo at Boston.com on May 20, 2025 about it is titled Smith College commencement speaker returns honorary degree after plagiarizing her speech. It linked to a letter by Sarah Willie-LeBreton at Presidential Letters: Follow-Up to Commencement 2025 on May 20, 2025 which stated that:

 

“I must share with you, however, that it has come to our attention that one of our honorary degree recipients—musician Evelyn M. Harris—borrowed much of her speech to graduates and their families from the commencement speeches of others without the attribution typical of and central to the ideals of academic integrity. 

In conversations about this after the event, Ms. Harris was forthcoming about her choices while also acknowledging that she sought to infuse the words of others with her own emotional valence. With appreciation for the requirement of academic integrity so central to the values of Smith, Ms. Harris has chosen to relinquish her honorary degree.” 

This event also was discussed by Jonathan Bailey at Plagiarism Today on May 21, 2025 in another article titled Graduation Speaker Plagiarizes Speech, Returns Honorary Degree. He has a section about other incidents titled The Long, Sad History of Commencement Plagiarism.

 

 My cartoon used a scroll adapted from OpenClipArt.  

 

 

Sunday, June 7, 2026

Does pushing that button really do anything?


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

There is an interesting article by Justin Pot at Popular Science on May 24, 2026 titled 3 buttons that don’t actually do anything. Pushbuttons that don’t do anything immediately would have been a better title. His examples are pedestrian crosswalk buttons, elevator door close buttons, and office wall thermostat buttons.

 

A pedestrian crosswalk button at an intersection, like the one shown above, might activate the cycle for a walk light. But during peak traffic hours it might not do anything, because the crosswalk light cycle is being automatically included.

 


 

 

 

 

 

 

 

 

 

 

 

 

Elevator door close buttons don’t act immediately - because the Americans with Disabilities Act (ADA) calls for a time delay.

 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

And changing the temperature setting on an office wall thermostat may not have any effect at all. There is a Wikipedia article titled placebo buttons about that topic.

 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

But I have never seen a nonfunctional button marked like the one shown above.

 

The thermostat and elevator buttons were modified from images at Wikimedia Commons.

 

 

Friday, June 5, 2026

Do Disfluencies Increase With Age? Evidence From a Sequential Corpus Study


 

 

 

 

 

 

 

 

 

 

 

 

There is a detailed article by Eleonora J. Beier, Suphasiree Chantavarin, and Fernanda Ferreira at Psychology and Aging on March 27, 2026 (pages 203 to 218) titled Do Disfluencies Increase With Age? Evidence From a Sequential Corpus Study of Disfluencies. In their fifth paragraph they explain what they focused on:

 

“Disfluencies have been identified at different levels of production, such as prosodic (e.g., improper stress), lexical (e.g., repetitions), and syntactic (e.g., phrase revisions). Other types of disfluencies include filled pauses (e.g., um, uh), lexical fillers (e.g., well, you know), and silent pauses. In addition, fluency can be assessed by measuring a person’s speech rate, or the speed with which they talk. In this study, we focus on filled pauses (um, uh), repeats (e.g., went to the the store), and repairs (e.g., I think- I believe that …), as well as speech rate.”

 

The abstract says:

 

“Speech disfluencies such as repeated words and pauses provide information about the cognitive systems underlying speech production. Understanding whether older age leads to changes in speech fluency can therefore help characterize the robustness of these systems over the life span. Older adults have been assumed to be more disfluent, but current evidence is minimal and contradictory. Particularly noteworthy is the lack of longitudinal data that would help establish whether a given individual’s disfluency rates change over time. This study examines changes in disfluency rates through a sequential design with a longitudinal component, involving the analysis of 325 recorded interviews conducted with 91 individuals at several points in their lives, spanning the ages of 20–94 years. We analyzed the speech of these individuals to assess the extent to which they became more disfluent in later interviews. We found that, with older age, individuals spoke more slowly and repeated more words. However, older age was not associated with other types of disfluencies such as filled pauses (uh’s and um’s) and repairs.

 

Overall, this study provides evidence that, although age itself is not a strong predictor of disfluencies, age leads to changes in other speech characteristics among some individuals (i.e., speech rate and indicators of lexical and syntactic complexity), and those changes in turn predict the production of disfluencies over the life span. These findings help resolve previous inconsistencies in this literature and set the stage for future experimental work on the cognitive mechanisms underlying changes in speech production in healthy aging.”

 

And their conclusions are:

 

“We have presented results from a corpus study of conversational speech to quantify age-related changes in speech fluency sequentially rather than cross-sectionally. We found that older adults spoke more slowly, consistent with previous reports (Castro & James 2014; Gordon et al., 2019; Horton et al., 2010)

and we observed that they produced more repeated words. At the same time, older adults did not produce more repairs or filled pauses, nor was there an effect of age on all three types of disfluencies combined.

 

Our results show that whether a relationship between age and disfluency is observed depends on the type of disfluency measured, which in turn helps explain previous inconsistent findings. Overall, we suggest that while age is not a strong predictor of fluency measures other than speech rate, there are large individual differences in how other speech characteristics change with age, even in relatively high-functioning older adults, reflecting the trade-off between slower processing speed (Salthouse, 1996; Salthouse & Meinz, 1995) and accumulated vocabulary and language experience (Ramscar et al., 2014). Thus, some individuals slow down their speech as they age—a change associated with higher lexical diversity and the use of less frequent words but also more filled pauses—whereas others do not.

 

Our findings challenge the prevalent assumption that older age leads to more disfluent speech by showing that other changes in speech production (i.e., overall speech rate, word frequency, lexical diversity, and sentence length) are better predictors of disfluencies than age.”

 

The cartoon was modified from the center of an image at Wikimedia Commons.

 

 

Wednesday, June 3, 2026

An Incidental Comic by Grant Snider about not needing a bookmark


 

 

 

 

 

 

 

Sometimes a comic strip can show you something very creative. On November 29, 2025 Grant Snider at Incidental Comics had one titled The Best Part with the following dialogue:

 

“The best part

  of reading two books at once:

  don’t need a bookmark.”

 

I illustrated it with an image. On October 11, 2024 I had blogged about A book on creativity from Grant Snider – profusely illustrated by comics.

 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This is almost the same geometry as used on couplings for railroad cars, as shown above.