(Roughly) Daily

Posts Tagged ‘measures

“Be careful what you wish for”*…

… And how you wish for it. Eric Athas, with an all-too-timely reminder…

Whenever I’m thinking about ideas to send to you all, I’m reminded of a principle called Goodhart’s Law, which says: “When a measure becomes a target, it ceases to be a good measure.”

In other words, when you tell people they’re being evaluated by a target they must hit, you risk pushing them to produce the wrong results in the name of reaching the target. The incentives can drive them to fixate on achieving the target, not achieving the overall goal.

The concept is named after the economist Charles Goodhart, who introduced it in a 1975 paper about monetary management. But the theory has been connected to a range of situations.

One of the most famous examples is a story about colonial India, when the British government sought to subdue an overpopulation of cobras in Delhi by placing a bounty on the snakes. Turn in a snakeskin, get some money.

But the plan backfired. People started farming cobras to cash in on the bounties, only exacerbating the population problem. This tale, which you can hear more about in a 2012 Freakonomics episode, spawned a shorthand for this phenomenon—the cobra effect

… Goodhart’s Law, or the cobra effect, isn’t limited to economic policy or invasive species. You can apply it to everyday situations:

  • A fitness tracker rewards you for clocking 10,000 steps a day, so you spend your evenings pacing around your living room. [see here]
  • A calorie-counting app pushes you to form an unhealthy diet to stay under the limit.
  • You set a resolution to read book a week but soon begin selecting books purely based on length—not interest or relevance—to hit the target.
  • A construction firm is given unrealistic milestones and must cut corners to fulfill a contract.
  • A school becomes hyper-focused on its test scores and offers incentives for grades instead of providing a well-rounded educational experience.

That last one happened in a years-long cheating scandal in Atlanta that unraveled in the 2010s.

Workplace quotas can have this effect, too. When you’re evaluated based on a quota, you may do anything to meet that quota, even if the quality of the work diminishes.

On the flip side, a quota policy may demotivate workers. Here’s what Adam Cobb, a professor of management at Wharton, said in a Wharton write-up about quotas: “People might start withholding effort … If you can easily meet your monthly quota, why should you try as hard once the goal is reached? Doing so may encourage the company to raise the quota, making your life harder.”

You can find the cobra effect in academic research, too, with the push for publication fueling an increase in fake papers.

Today, we’re surrounded by measurements that can be tempting to use as targets in our behavior. What is inbox zero but a target that may distract us from completing more fulfilling work?

I think a lot about the cobra effect with social media, where your success is tied to your ability to accrue views, likes, comments, and shares. Those targets can create an expectation that you must always be creating something new. Social media managers, influencers, and YouTubers have talked about the pressure to churn out new content to please algorithms and feed their audiences…

… Which brings me back to the point I started with a few hundred words ago, and the title of this post. I send this newsletter every Sunday. The routine is helpful because it provides me with a structure to work within. Absent that framework, I could end up spending too little or too much time on it.

But I must remind myself that the weekly tempo isn’t the target. If it were, I’d be critiquing myself based on arbitrary timing, not on the quality of the information I’m sharing with you. I’d be more prone to “spin up” content, as opposed to finding interesting ideas to share with you. I try to keep Goodhart’s Law in mind each week.

As you go about your day, consider your own goals, personally and professionally. When you take an action, like posting a photo on social media or completing a work task, are you doing it to please a measurement? To hit a target?…

The cobra effect and the dangers of turning measures into targets: “I’m not writing this to hit a weekly target,” from @ericathas.

Apposite: “When workplace bonuses backfire” (Economist gift link)

(Image above: source)

Aesop’s Fables

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As we interrogate our intentions, we might recall that it was on this date in 1793 that the Queen of France, Marie Antoinette, was beheaded. The French Revolution had begun in 1789…

… The Storming of the Bastille on 14 July led to a series of radical measures by the Assembly, among them the abolition of feudalism, state control over the Catholic Church in France, and a declaration of rights.

The next three years were dominated by the struggle for political control, exacerbated by economic depression. Military defeats following the outbreak of the French Revolutionary Wars in April 1792 resulted in the insurrection of 10 August 1792. The monarchy was replaced by the French First Republic in September, while Louis XVI was executed in January 1793.

After another revolt in June 1793, the constitution was suspended, and adequate political power passed from the National Convention to the Committee of Public Safety [which decreed Marie Antoinette’s fate]. About 16,000 people were executed in a Reign of Terror, which ended in July 1794. Weakened by external threats and internal opposition, the Republic was replaced in 1795 by the Directory. Four years later, in 1799, the Consulate seized power in a military coup led by Napoleon Bonaparte. This is generally seen as marking the end of the Revolutionary period…

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“If someone separated the art of counting and measuring and weighing from all the other arts, what was left of each (of the others) would be, so to speak, insignificant”*…

Mathematics, Bo Malmberg and Hannes Malmberg argue, was the cornerstone of the Industrial Revolution. A new paradigm of measurement and calculation, more than scientific discovery, built industry, modernity, and the world we inhabit today…

In school, you might have heard that the Industrial Revolution was preceded by the Scientific Revolution, when Newton uncovered the mechanical laws underlying motion and Galileo learned the true shape of the cosmos. Armed with this newfound knowledge and the scientific method, the inventors of the Industrial Revolution created machines – from watches to steam engines – that would change everything.

But was science really the key? Most of the significant inventions of the Industrial Revolution were not undergirded by a deep scientific understanding, and their inventors were not scientists.

The standard chronology ignores many of the important events of the previous 500 years. Widespread trade expanded throughout Europe. Artists began using linear perspective and mathematicians learned to use derivatives. Financiers started joint stock corporations and ships navigated the open seas. Fiscally powerful states were conducting warfare on a global scale.

There is an intellectual thread that runs through all of these advances: measurement and calculation. Geometric calculations led to breakthroughs in painting, astronomy, cartography, surveying, and physics. The introduction of mathematics in human affairs led to advancements in accounting, finance, fiscal affairs, demography, and economics – a kind of social mathematics. All reflect an underlying ‘calculating paradigm’ – the idea that measurement, calculation, and mathematics can be successfully applied to virtually every domain. This paradigm spread across Europe through education, which we can observe by the proliferation of mathematics textbooks and schools. It was this paradigm, more than science itself, that drove progress. It was this mathematical revolution that created modernity…

The fascinating story: “How mathematics built the modern world,” from @bomalmb and @HannesMalmberg1 in @WorksInProgMag.

* Plato

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As we muse on measurement, we might recall that it was on this date in 1790, early in the French Revolution, that the French Assembly, acting on the urging of Bishop Charles Maurice de Talleyrand, moved to create a new system of weights and measures based on natural units– what we now know as the metric system.

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“The metric system did not really catch on in the States, unless you count the increasing popularity of the nine-millimeter bullet”*…

Nearly everywhere in the world, folks use the metric system to measure things; here in the U.S. we use the Imperial system. (Note that Britain should really be a dark shade of green– i.e. a little yellow, mixed with a lot of blue. Brits may regularly use inches, ounces, miles, and pounds in everyday life, but have officially been Metric since 1965.)

Mike Sowden (amusingly and informatively) recounts the history of the metric system, then muses on why Imperial measures– the mile, the inch, the cubit, the ell– have staying power…

… Yes, all of these lack precision, so they’re useless for modern science, and would be incredibly dangerous if used for engineering purposes. But they also tell a story of people’s relationship with the space they moved through.

A lexis of movement – perhaps in a similar fashion to the language of landscape that writer Robert MacFarlane has done so much to retrieve.

This is why I’m on the fence about Imperial now. There’s no question that Metric is necessary as a standardised, exact form used to make cars that don’t shake themselves to bits, planes that don’t fall out the sky and spacecraft that can launch themselves to interplanetary targets with mind-blowing accuracy.

But the versions of Imperial still being used by people in everyday life deserve their place in the world too.

Anyone brought up thinking and feeling temperature in Fahrenheit can tell us Celsius-reared folk something different about how we can experience the world. Anyone cooking in pounds will be thinking about food a little differently (“well, it’s just 2 cups, isn’t it?”). All these things are tiny windows into new ways of seeing what we think we already know

In defense of an old way of measuring: “Why Go Imperial in a World Gone Metric?” from @Mikeachim.

See also: “The real reasons the US refuses to go metric,” and explainer from Verge Science on the last big attempt to turn the US towards Metric, why it failed, and the ways scientists and manufacturers have snuck it in anyway.

* Dave Barry

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As we muse on measurement, we might pause, on Pi Day, for a piece of pi(e)…

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… in celebration of Albert Einstein’s birthday; he was born on this date in 1879.

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“Everything should be made as simple as possible, but not simpler.”

Written by (Roughly) Daily

March 14, 2024 at 1:00 am

A conversion experience…

1 average human stomach holds as much as 0.9203413389691 of a beer keg (photo source)

Who hasn’t wondered…

How many NASCAR Winston Cup Tires in an African Elephant?
How many kegs of beer in an Airbus A380?
How many Shaquille O’Neals in the Great Wall of China?
How many giraffe’s necks in the Weinermobile?
How many bathtubs in an average human stomach?
How many dump trucks in an Olympic Swimming pool?

One can derive excellent equivalencies to one’s heart’s content at “WeirdConverter.”

As we refrain from putting our thumbs onto the scales, we might recall that it was on this date in 1776 that Richard Bache became the second Postmaster General of (what was becoming) the United States; he took over from his father-in-law, Benjamin Franklin, who’d left for Paris to represent the interests of the Continental Congress.

Richard Bache (source: Benjamin Franklin Tercentenary)