PED30:

Both the 86% iPhone ownership and 89% intention to purchase an iPhone metrics are record highs for our Teen Survey, up from 85% and 88%, respectively, in Spring-20. We believe the increased penetration and intention are incredibly important for a maturing premium smartphone market. In addition, these trends are encouraging ahead of Apple’s 5G iPhone launch, which could provide a significant product cycle refresh.

Also, the Apple Watch continues to be the top smartwatch among teens. The Apple Watch ownership was 25%, flat from the Spring-20 survey. We view the market share consistency as a great example of the company’s ability to drive hardware sales in the wearables/accessories market. Finally, we think these positive hardware trends can be a catalyst for further services growth, as the hardware installed based for Apple continues to grow.

Radio Prague International, via Roman Meliška:

Tatra’s futuristic-looking, aerodynamic cars, which first appeared on the roads in the 1930s, represent some of the most distinctive designs ever produced in Czechoslovakia. These now classic cars were not the only thing Tatra made; as well as their well-known trucks, the company based in Kop?ivnice, Moravia also turned out planes, military vehicles and even the stunning Slovak Arrow train.

However, cars are the main focus of the book Tatra: The Legacy of Hans Ledwinka by Ivan Margolius and John G. Henry, which has just come out in Czech for the first time. Margolius’s father Rudolf Margolius was executed in the notorious Slánsky show trial when Ivan was a small boy and in the 1960s he moved to London, where he became an architect.

He shared a startling family connection to Tatra, and lots of fascinating information on the company’s history, in this interview from his home in the UK.

The title of the book is Tatra: The Legacy of Hans Ledwinka. Who was Hans Ledwinka?

A ten-strong team of scientists and doctors has written this guide trying to point out that the idea that droplets (big infected drops, ie from a cough or sneeze) or fomites (infected drops on a surface) are the principal modes of transmission of Covid-19 just doesn’t add up:

Cicero:

Marcus Tullius Cicero was a Roman statesman, lawyer, scholar, and writer who tried to uphold republican principles in the final civil wars that destroyed the Roman Republic. His writings include books on rhetoric, orations, philosophical and political treatises, and letters. He is remembered in modern times as the greatest Roman orator.

1. Old age is not unique in being burdensome…

I think, my friends, that you marvel at a thing really far from difficult. For to those who have not the means within themselves of a virtuous and happy life every age is burdensome; and, on the other hand, to those who seek all good from themselves nothing can seem evil that the laws of nature inevitably impose. To this class old age especially belongs, which all men wish to attain and yet reproach when attained; such is the inconsistency and perversity of Folly!

They say that it stole upon them faster than they had expected. In the first place, who has forced them to form a mistaken judgement? For how much more rapidly does old age steal upon youth than youth upon childhood? And again, how much less burdensome would old age be to them if they were in their eight hundredth rather than in their eightieth year? In fact, no lapse of time, however long, once it had slipped away, could solace or soothe a foolish old age.

Martin Kleppmann:

My Book, Designing Data-Intensive Applications, recently passed the milestone of 100,000 copies sold. Last year, it was the second-best-selling book in O’Reilly’s entire catalogue, second only to Aurélien Géron’s machine learning book. Machine learning is obviously a hot topic, so I am quite content with coming second to it! ?

To me, the success of this book was totally unexpected: while I was writing it, I thought that it was going to be a bit niche, and I set myself the goal of selling 10,000 copies over the lifetime of the book. Having passed that goal tenfold, this seems like a good opportunity to look back and reflect on the process. I don’t want to make this post too self-congratulatory, but rather I will try to share some insights into the business of book-writing.

Is it financially worth it?

Most books make very little money for both authors and publishers, but then occasionally something like Harry Potter comes along. If you are considering writing a book, I strongly recommend that you estimate the value of your future royalties to be close to zero. Like starting a band with friends and hoping to become rock stars, it’s difficult to predict in advance what will be a hit and what will flop. Maybe this applies less to technical books than to fiction and music, but I suspect that even with technical books, there are a small number of hits, and most books sell quite modest numbers.

That said, in my case, I am happy to report that writing this book has in retrospect turned out to be a financially sound decision. These graphs show the royalties I have been paid since the book first went on sale:

Alex Murrell:

Marketers are prone to a prediction.

You’ll find them in the annual tirade of trend decks. In the PowerPoint projections of self-proclaimed prophets. In the feeds of forecasters and futurists. They crop up on every conference stage. They make their mark on every marketing magazine. And they work their way into every white paper.

To understand the extent of our forecasting fascination, I analysed the websites of three management consultancies looking for predictions with time frames ranging from 2025 to 2050. Whilst one prediction may be published multiple times, the size of the numbers still shocked me. Deloitte’s site makes 6904 predictions. McKinsey & Company make 4296. And Boston Consulting Group, 3679.

In total, these three companies’ websites include just shy of 15,000 predictions stretching out over the next 30 years.

But it doesn’t stop there.

My analysis finished in the year 2050 not because the predictions came to an end but because my enthusiasm did.

Search the sites and you’ll find forecasts stretching all the way to the year 2100. We’re still finding our feet in this century but some, it seems, already understand the next.

I believe the vast majority of these to be not forecasts but fantasies. Snake oil dressed up as science. Fiction masquerading as fact.

Cori Petersen:

“Within two hours of the court’s injunction, Abundant Life Christian School announced that all kids will have the opportunity to be back in the school building on Monday,” said Chris Truitt, a parent from DeForest. “We are absolutely thrilled.” 

On Aug. 21, Public Health Madison & Dane County issued Order #9, a mandate that all Dane County schools close to students in grades 3-12. The Wisconsin Institute for Law & Liberty sued on Aug. 26, challenging PHMDC’s authority to close schools and asking the Wisconsin Supreme Court to invalidate Dane County’s order on behalf of the Truitts and others. 

The Wisconsin Supreme Court agreed on Sept. 10 to hear the case, consolidated it with two other similar challenges, and issued a temporary injunction allowing schools to open immediately.

“It couldn’t have come at a better time,” Truitt said. “We are at the end of our rope.”  

When Order #9 was issued on Aug. 21, families throughout Dane County had their plans thrown into chaos. While the Madison Metropolitan School District planned to begin the year virtually, many Dane County private schools planned to open in person. Order #9 effectively cancelled the choices of many parents who intentionally sought out in-person education despite the COVID-19 pandemic.

“I’ve never had problems with school with her, but virtual learning was a disaster for us,” said Erin Haroldson of Mount Horeb, a parent of an eight-year-old student and party to the WILL lawsuit. “She was beyond excited to go back to school. When the mandate came along, there were tears at our house.” ?  

Related: Catholic schools will sue Dane County Madison Public Health to open as scheduled

Notes and links on Dane County Madison Public Health. (> 140 employees).

Molly Beck and Madeline Heim:

which pushed Dane County this week not to calculate its percentage of positive tests — a data point the public uses to determine how intense infection is in an area.   

While positive test results are being processed and their number reported quickly, negative test results are taking days in some cases to be analyzed before they are reported to the state. 

Channel3000:

The department said it was between eight and 10 days behind in updating that metric on the dashboard, and as a result it appeared to show a higher positive percentage of tests and a lower number of total tests per day.

The department said this delay is due to the fact data analysts must input each of the hundreds of tests per day manually, and in order to continue accurate and timely contact tracing efforts, they prioritized inputting positive tests.

“Positive tests are always immediately verified and processed, and delays in processing negative tests in our data system does not affect notification of test results,” the department said in a news release. “The only effect this backlog has had is on our percent positivity rate and daily test counts.”

Staff have not verified the approximately 17,000 tests, which includes steps such as matching test results to patients to avoid duplicating numbers and verifying the person who was tested resides in Dane County.

All 77 false-positive COVID-19 tests come back negative upon reruns.

Madison private school raises $70,000 for lawsuit against public health order. – WKOW-TV. Commentary.

WEAC: $1.57 million for Four Wisconsin Senators

Assembly against private school forced closure.

Wisconsin Catholic schools will challenge local COVID-19 closing order. More.

2017: West High Reading Interventionist Teacher’s Remarks to the School Board on Madison’s Disastrous Reading Results

Madison’s taxpayer supported K-12 school district, despite spending far more than most, has long tolerated disastrous reading results.

My Question to Wisconsin Governor Tony Evers on Teacher Mulligans and our Disastrous Reading Results

“An emphasis on adult employment”

Wisconsin Public Policy Forum Madison School District Report[PDF]

Booked, but can’t read (Madison): functional literacy, National citizenship and the new face of Dred Scott in the age of mass incarceration