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Adam Liss
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Adam Liss

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Adam Liss

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Attention, puzzle fans: The Master Theorem is back!
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Hey! Get off my lawn.
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"Indeed, Gawker’s record for accuracy is excellent. For a site as reckless as it is purported to be, there have been no Jayson Blairs, no conflict-of-interest or plagiarism scandals, no career-ending corrections. The chief rule of establishment journalism that it violated to its detriment, it seems, is the one that recommends against pissing off billionaires."
Gawker.com is shutting down today, Monday 22nd August, 2016, some 13 years after it began and two days before the end of my forties. It is the end of an era.
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"To my mind, Gawker’s ultimate fate was predestined."
Ultimately it is a matter of facing realities.
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"The best leaders have the ability to relate to each member of their team"

via +Entrepreneur
Self-drivers who become leaders need to learn how to manage those with different motivators.
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Always
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Brilliant!

Thanks for the laugh, +Andrew Pam​.
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15 years later, and we're (A) still afraid of our shadows, and (B) utterly unprepared to deal with a real or imagined crisis.

We will never learn, will we?
 
Travelers lived through the panic and chaos of a terror attack, only to learn it was an act of mass crowd hysteria.
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+Kiki Jewell /sigh/
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FORT MEADE, MD—Explaining that things weren’t working right and he didn’t know why, visibly frustrated National Security Agency director Michael S. Rogers called a press conference Thursday afternoon to ask if somebody good at computers could help out the intelligence organization.
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I think Edward Snowden is pretty good "at computers".
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It's Monday, you don't really want to be working. Instead, watch all of the classic 1980s episodes of Ray Bradbury Theater free on YouTube.
Watch all of the classic 1980s episodes of Ray Bradbury Theater free on YouTube
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Somos unos rebeldes, +Adam Liss. En la introducción se lee claramente que hay que mirarlos hoy, lunes. :D 
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Hangouts is complicated?

I hope it does let you lip-read! :)
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Not sure whether this should go into the "Security is Hard" or the "Why do I Need to Learn Math" collection.

But it's important. It explains why catching terrorists means harassing thousands of innocent people, and why you probably don't have that rate disease even if you test positive.

via +Lauren Weinstein
 
Base Rate Fallacy vs. Population of Germany

There are 80 Million people living in Germany. The article in http://www.spiegel.de/politik/deutschland/islamisten-in-deutschland-wie-bedroht-ist-die-innere-sicherheit-a-1011912.html claims that 230 of them are in a file for radical islamists. Let's assume they are all actual evil people instead of suspects that may or may not be actually dangerous.

That's 230 out of 80,000,000 people, or a base rate of 0.00028%.

Let us assume we can check for terrorists with a special scanner. In a pro mille of all cases, 0.1%, the scanner will flag a good citizen erroneously as a terrorist. This leaves us with 80,000 upstanding citizens as false suspects.

In a pro mille of all cases, 0.1%, the scanner will also flag an actual terrorist as a law abiding citizen. This leaves us with zero undetected terrorists. That is, the scanner will actually catch all real terrorists, and in total we will have 80224 suspects.

That is, 224*100/80224 = 0.27% of our suspects will be actual terrorists, and 99.72% of our suspects will be actual law abiding citizens.

Let's improve the test 100 times, so the error rate is one pro mille of a percent, or one in 100,000.

Now we have 1024 suspects, out of which 224 (22%) will be terrorists, and 800 people, 78%, will be actual good citizens - 4 in 5 suspects will still be innocent.

TL;DR: If you are scanning for something rare you are fucked. You will have all of the targets in your suspect list and still are none the wiser until after the explosions, even if you have tools of impossible precision.
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I suspect Mr Trump needs to read this and consider modifying his screening policy.
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Basic Information
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Tagline
Engineer, Puzzle Fanatic, Incurable Punster. Armchair cryptographer, security and privacy advocate. Insatiably curious about the world and its inhabitants.
Introduction
I am a natural experimentalist.  I love to learn, to innovate, and to make new mistakes.  I rarely take myself seriously; there are far more appropriate subjects to be serious about.

I find humor and puzzles in the ordinary, laugh at math jokes, and tend to cram far too many thoughts into one sentence. I'm fascinated by languages and smitten by the beauty and utility of American Sign Language. Bad grammar drives me nuts. 

I'm fond of teaching through analogy and counter-examples, asking silly questions, and gentle teasing.  Sometimes I make stuff up just to watch the gears turn in someone's head.  Whether you're a child or an adult, I'll show you that even "hard" subjects like math and science can be easyand funto learn.  If you think that's nuts, it's because you've been taught wrong.  I'll prove it to you. Try me.

I have an extremely low tolerance for willful ignorance, illogic, and baseless "alternative" explanations for the way the world works.

A 3-year-old gave up asking me "Why?" before I ran out of answers.

I'm terribly shy but have always found it easy to make people laugh.  Often at me.  And not always intentionally.  Childhood friends still tell me I'd have made a great stand-up comedian or psychiatrist; I can't help wondering how those talents are related.  But I'm sure we're all better off leaving that question unanswered.

Will work ... no ... have worked for chocolate.

How did you find me? If you added me to your circles and don't know me personally, I'd love to know what caught your interest!
Bragging rights
I have the best coworkers on the planet.
Work
Occupation
I disguise magical, complicated technology as simple, everyday tools.