Mind Matters Natural and Artificial Intelligence News and Analysis

Gary Smith

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cute artificial intelligence robot with notebook

Why Chatbots (LLMs) Flunk Routine Grade 9 Math Tests

Lack of true understanding is the Achilles heel of Large Language Models (LLMs). Have a look at the excruciating results

Chatbots don’t understand, in any meaningful sense, what words mean and therefore do not know how the given numbers should be used.

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polar bear astronaut in space suit, generative ai

Internet Pollution — If You Tell a Lie Long Enough…

Large Language Models (chatbots) can generate falsehoods faster than humans can correct them. For example, they might say that the Soviets sent bears into space...

Later, Copilot and other LLMs will be trained to say no bears have been sent into space but many thousands of other misstatements will fly under their radar.

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A vibrant blue programming code background represents the intricate work of software developers and the art of computer scripting

Computers Still Do Not “Understand”

Don't be seduced into attributing human traits to computers.

Imagine people making decisions that are influenced by an LLM that does not understand the meaning of any of the words it inputs and outputs.

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When it Comes to New Technologies Like AI, Tempers Run Hot

So far, the most tangible LLM successes have been in generating political disinformation and phishing scams.

LLMs often remind us of clueless students who answer essay questions by writing everything they think is relevant, hoping the right answer is in there somewhere

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3d render gold metallic pie chart icon on dark background concept for analyze data information

Let’s Dispose of Exploding Pie Charts

Pie charts are seldom a good idea. Here's why.

Points can be made without sensationalized graphs that undermine the credibility of the argument. Let’s dispose of exploding pie charts.

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Coding hologram, ai programming and dark background with chat machine, large language model or app. Big data, cloud computing and artificial intelligence software on live web in technology abstract

Large Language Models are Still Smoke and Mirrors

Incapable of understanding, LLMs are good at giving bloated answers.

I recently received an email invitation from Google to try Gemini Pro in Bard. There was an accompanying video demonstration of Bard’s powers, which I didn’t bother watching because of reports that a Gemini promotional video released a few days earlier had been faked. After TED organizer Chris Anderson watched the video, he tweeted, “I can’t stop thinking about the implications of this demo. Surely it’s not crazy to think that sometime next year, a fledgling Gemini 2.0 could attend a board meeting, read the briefing docs, look at the slides, listen to every one’s words, and make intelligent contributions to the issues debated? Now tell me. Wouldn’t that count as AGI?” Legendary software engineer Grady Booch replied, “That demo Read More ›

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Senior, man group and running on street together for elderly fitness and urban wellness with happiness. Happy retirement, smile and runner club in workout, diversity and teamwork in park for health

Blue Zone BS: The Longevity Cluster Myth

We need to be reminded how much real science has done for us and how real science is done.

Real science is currently under siege, pummeled by conspiracy nuts and undermined internally by a replication crisis created by sloppy science.

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Cropped photo of businessman analyzing business diagram, marketing statistics and finance market graphs on laptop monitor in the office.

Confusing Correlation with Causation

Computers are amazing. But they can't distinguish between correlation and causation.

Artificial intelligence (AI) algorithms are terrific at discovering statistical correlations but terrible at distinguishing between correlation and causation. A computer algorithm might find a correlation between how often a person has been in an automobile accident and the words they post on Facebook, being a good software engineer and visiting certain websites, and making loan payments on time and keeping one’s phone fully charged. However, computer algorithms do not know what any of these things are and consequently have no way of determining whether these are causal relationships (and therefore useful predictors) or fleeting coincidences (that are useless predictors). If the program is black box, then humans cannot intervene and declare that these are almost certainly irrelevant coincidences. Even if Read More ›

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Conceptual drawing of room temperature superconductivity, 3D rendering of suspended iron cubes

The LK-99 BS Further Undermines the Credibility of Science

The rejection or distortion of genuine science can have tragic consequences

Science has enriched our lives enormously. Publicity stunts like this superconductor fiasco will not help.

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Scoring the winning points at a basketball game

Sabrina Ionescu’s Hot Hand

When basketball players hit a "streak," does that elevate the probability of success?

Athletes do sometimes get hot—not that their chance of success is 100% but that it is temporarily elevated above their normal probability.

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Group of asian creative team programing designers participate in all phases of the UX design.

Using Data Like a Drunk Uses a Lamppost

Startup companies can be tempted to use statistics for support instead of real illumination

Karl Pearson, the great English mathematician and statistician, wrote, “Statistics is the grammar of science.” But it can be used to mislead, too.

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Smartphone screen with smart home technologies on a blue backdrop. Internet of things isometric conceptual image. Digital Residence utilizing a mobile phone's fingerprint to get access to IOT systems

The LLM Deep Fake—Follow the Money

Hype sells. Just look at what's happening with AI

Large language models (LLMs) are far more impressive now than they were just a few months or a year ago. Compare these exchanges I had with GPT-3 in June 2022 and with ChatGPT two days ago: Gary:          Can I improve my test scores if I study after taking the test? GPT-3:        That’s a good question. I’m not sure if you can improve your test scores by studying after taking the test, but it couldn’t hurt to try! ChatGPT:   Studying after taking a test is unlikely to directly improve your scores on that particular test since the test has already been completed. Once a test is finished, the opportunity to answer questions and provide responses has passed. However, studying after taking Read More ›

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young asian business team people meeting in office

The Death of Peer Review?

Science is built on useful research and thoroughly vetted peer review

Two years ago, I wrote about how peer review has become an example of Goodhart’s law: “When a measure becomes a target, it ceases to be a good measure.” Once scientific accomplishments came to be gauged by the publication of peer-reviewed research papers, peer review ceased to be a good measure of scientific accomplishments. The situation has not improved. One consequence of the pressure to publish is the temptation researchers have to p-hack or HARK. P-hacking occurs when a researcher tortures the data in order to support a desired conclusion. For example, a researcher might look at subsets of the data, discard inconvenient data, or try different model specifications until the desired results are obtained and deemed statistically significant—and therefore Read More ›

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Man and robotic machine work together inside industrial building. The mechanical arm performs welds on metal components assisted by a worker who in turn manages welds manually.

A World Without Work? Here We Go Again

Large language models still can't replace critical thinking

On March 22, nearly 2,000 people signed an open letter drafted by the Future of Life Institute (FLI) calling for a pause of at least 6 months in the development of large language models (LLMs): Contemporary AI systems are now becoming human-competitive at general tasks, and we must ask ourselves: Should we let machines flood our information channels with propaganda and untruth? Should we automate away all the jobs, including the fulfilling ones? Should we develop nonhuman minds that might eventually outnumber, outsmart, obsolete and replace us? Should we risk loss of control of our civilization? FLI is a nonprofit organization concerned with the existential risks posed by artificial intelligence. Its president is Max Tegmark, an MIT professor who is no stranger to hype. Read More ›

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close up of calculation table, printed in an old book

An Illusion of Emergence, Part 2

A figure can tell a story but, intentionally or unintentionally, the story that is told may be fiction

I recently wrote about how graphs that use logarithms on the horizontal axis can create a misleading impression of the relationship between two variables. The specific example I used was the claim made in a recent paper (with 16 coauthors from Google, Stanford, UNC Chapel Hill, and DeepMind) that scaling up the number of parameters in large language models (LLMs) like ChatGPT can cause “emergence,” which they define as qualitative changes in abilities that are not present in smaller-scale models but are present in large-scale models; thus they cannot be predicted by simply extrapolating the performance improvements on smaller-scale models. They present several graphs similar to this one that seem to show emergence: However, their graphs have the logarithms of Read More ›

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businessman hand writing a business graph on a touch screen inte

A Graph Can Tell a Story—Sometimes It’s an Illusion

Mistakes, chicanery, and "chartjunk" can undermine the usefulness of graphs

A picture is said to be worth a thousand words. A graph can be worth a thousand numbers. Graphs are, as Edward Tufte titled his wonderful book, the “visual display of quantitative information.” Graphs should assist our understanding of the data we are using. Graphs can help us identify tendencies, patterns, trends, and relationships. They should display data accurately and encourage viewers to think about the data rather than admire the artwork. Unfortunately, graphs are sometimes marred (intentionally or unintentionally) by a variety of misleading techniques or by what Tufte calls “chartjunk” that obscures rather than illuminates. I have described elsewhere many ways in which mistakes, chicanery, and chartjunk can undermine the usefulness of graphs. I recently saw a novel Read More ›