1/ Marcus Bullock went to prison in the mid-90s at the age of 15.

Today, he's the CEO of Flikshop -- the "Instagram for the Incarcerated", an alternative to the outrageously expensive phone call system.

This is a truly inspirational founder story 👇👇

For decades, Jeff Bezos shunned ads.

But now, Amazon’s ad business is huge: it’s on a $30B+ annual run rate (more than 2x the combined sales of Twitter, Snap and Pinterest).

Here’s how it happened 🧵

1/ Amazon doesn’t break out its ad business separately in financial filings. However, most analyst believe ads make up the majority of its “Other” revenue segment.

This figure has exploded from $1B in 2015 to a current annual run rate of ~$32B.

2/ In 2009, Bezos said “ads are the price you pay for a crappy product”.

But the business is so lucrative that Amazon’s interface has been swamped with ads:

◻️ First 3-7 search results (left in red)
◻️ Most of the product page (right in blue)

3/ Prior to the rise of ads, Amazon set out to build the ultimate organic customer recommendations engine.

The approach was codified in a famed 2003 research paper: “Amazon Recommendations: Item-to-Item Collaborative Filtering.”

4/ In recent years, Amazon organic recommendations:

◻️"Customers who bought this also bought this"
◻️"Customers who viewed also viewed"

Have been replaced w/ ads:

◻️ "Sponsored products related to"
◻️ "Brands related to this category"

“I spend too much at Starbucks” is a legendary meme.

It's also not an accident: the coffee retailer -- worth $120B -- uses many psychological hacks in its store and menu designs to get you to drop more cash.

Here are 11 of them 🧵

1/ Starbucks is all about positioning

The chain has higher prices vs competitors. But that's the point.

People typically assign higher value/quality to higher prices. Known as "irrational value assessment", this makes Starbucks an everyday luxury that people will pay for.

2/ Premium brand = premium customer base

By setting its prices higher, Starbucks attracts clientele that are relatively price insensitive.

Starbucks frequently raises its prices with little negative effect to its bottom line.

3/ "More than coffee"

Former Starbucks CEO Howard Schultz created the premium feel by emphasizing experience:

◻️Positioned SBUX as a "third place" (b/t home, work)
◻️Brought bean grinding in-store (for aroma)
◻️Banned auto espresso machines (it took away from the barista craft)

4/ Lighting and visual cues

The Starbucks operations is about "flow", efficiently moving people around the store+ getting them to spend.

To form lines, it directs people to well-lit areas (usually the merchandise, which provides the added benefit of nudging products for sale).

A Netflix user will browse the app for 90 seconds and leave if they find nothing.

Thumbnail artwork is actually NFLX's most effective lever to influence a viewer's choice. A user will look at one for only 1.8 seconds, so NFLX spends huge to optimize them.

Here's a breakdown🧵

1/ Spoiler alert: humans are visual animals.

Our eyes move 3-4x per second to process information and we can analyze an image in as little as 13 milliseconds.

2/ In 2014, Netflix consumer research showed that thumbnail artwork:

◻️ is "the biggest influencer...to watch content"
◻️ is the focus of 82% of browsing time

A user looks at one for only 1.8 seconds. If they can't find Netflix content in 90 seconds, they'll leave the app.

3/ Consequently, Netflix uses an elaborate thumbnail selection process for each of its 200m+ users.

The process is called aestethic visual analysis (AVA), which starts by pulling all the frames from a video.

For reference: a 1hr episode of "Stranger Things" has 86k frames.

4/ In a process known as "Frame Annotation", each frame is tagged with metadata identifying key variables:

◻️ Saliency
◻️ Frame #
◻️ Brightness / Contrast
◻️ Nudity probability
◻️ Face / skin tone

Steve Jobs famously said innovation is "saying no to 1000 things" before you say yes.

For more than a decade, Apple has used Pablo Picasso's Bull to drive home the lesson.

Here's a breakdown 🧵

In Dec. 1945, Picasso created "The Bull", a series of 11 lithographs (stone prints).

With each successive print, a bull is simplified and abstracted. Picasso's goal was to find "spirit of the beast".

At Apple, employees are taught this philosophy.

Below are the 1st, 4th and last stone print.

The bull progresses from:
◻️a realistic drawing
◻️to a deconstructed image w/ the famous "abstract" style
◻️to lines outlining a shape

Through 11 iterations, Picasso simplified the image until it captured the "essence" of the bull.

Picasso said of the abstraction process:

"Two holes. That’s the symbol for the face, enough to evoke it without representing it. But isn’t it strange that it can be done through such simple means? Whatever is most abstract may perhaps be the summit of reality.”

Enter Apple University.

In 2008, Steve Jobs tapped the dean of Yale School of Management to create an internal training curriculum for Apple.

The program was meant to teach new employees Apple's culture and design philosophy (the teachings are rarely shared with the public).

Our intuitions often leads us astray. A good reminder: study counterintuitive math and economic results.

Here are 9 of them 🧵

The Birthday Paradox

In a room of 23 people, there's a >50% chance that 2 people share the same birthday.

This type of probabilistic thinking does *not* come naturally to many people.

The Coastline Paradox

Fractal geometry is also confounding:

The coastline of a landmass does not have a well-defined measurement. As the unit of measurement gets smaller (eg. from KMs to cm), the length increases without limit.

Winner's Curse

In an auction, the winning bid will usually exceed the intrinsic worth of an item leading to a significant overpay (and negative net profit for the winner).

Braess's Paradox

Removing an extra road can make everyone's commute time faster.

Why? The existence of a "fast" road leads to congestion because everyone uses it. If you remove the shortcut, traffic flows better.

I am reading through reams of late-1920s communist poetry and easily my favourite title so far is: "To a Lady who Rejected a Poem about Spring as a Petit-Bourgeois Deviation"

The last lines:
"So here's my hat into the air,
Three cheers for your amazing hair,
For coal mines, and for turbines, too,
For steel, the Comintern and you!"

A not exactly graceful (though possibly satirical) title: "Lines Disassociating Myself from Yessenin and Supporting the Otherwise Unfounded Legend that I am a Foremost Proletarian Writer"

An excerpt:
"Goodbye verses of Yessenin
Goodbye literary slop-
You are not the line of Lenin
You are not the line of WAPP

Never shall I moan a
simple lyric from the heart
I'll devote my new corona
to the proletarian art"

The poet was Joseph Freeman, who published much of his revolutionary verse in the New Masses, a stylish journal of the interwar American literary Left.

1/ Here are my notes from @robertwrighter's book - Nonzero: the logic of human destiny. I enjoyed the book very much.

The basic premise of the book is that history has a direction which favors co-operation and non-zero sum games, and that causes an increase in complexity.

2/ Starting from the first replicating molecule which co-operated with an outer layer to form first proto-cell, evolutionary and cultural history is full of examples where two entities come together to survive and progress a lot more than they would have done individually.

3/ This co-operative entity fares much better than two individual entities because of specialization. If two entities are in the same boat - that they win together or lose together - then trust is implicit.

4/ In a non-zero sum game, trust causes entities to focus on what they do best.

For example, eukaryotic cells - the ones animals and plants have - emerged when two proto-cells merged, and one took the role of energy generator (mitochondria), the other specialized in protection.

5/ Some scientists believe that even nucleus in a cell is a result of an early cell merging with another cell.

So M&A is not a recent phenomena, entities have been merging because of common interests ever since life started.

I present to you all, my (possibly) superthread On how and why the Unknown God from Genshin Impact, and The Herrscher of Void/God Kiana/Sirin from Honkai Impact!

First off! We’ll start with the obvious things that constitute a possible connection.

They share the same Japanese Voice actress! Rie Kugimiya.
Usually this is a stretch reason, but considering everything else, it’s not unlikely that it’s the same character.

Secondly, their Appearances.
The both have very long white hair with identical bang style, and a very noticeable small piece of hair on top that curls upwards. That’s a defining part Of all of Kiana’s hairstyles, and for it to be shared with this god says something.

Another notable thing is their eyes. They both have Glowing golden eyes with very similar appearances. They contain a ring, and a 4-point star pupil. Resemblant of a scope if you will. That’s The Herrscher of Void’s defining characteristic

If you’d even like to take a look at their outfits, there’s resemblances including the black fur collar, the designs on the torso and chest, and the use of something similar to coat tails/skirt. The Herrscher can change their outfit and they aren’t stuck with one. Sirin does this

I don't often promote myself on here, but I should. I have done some things that I am proud of. So here is a thread of episodes from @OurTurnPodcast that I contributed a segment and/or co-hosted. #RPG #podcast

Here is one of my very first contributions, a segment about one of my favorite RPGs of all time: 13th Age. @13thAge I still love it, and I have hacked the system to run other genres (ex. Star Wars: The Old Republic). Give it a try

One the one-year anniversary of @OurTurnPodcast, I did a segment about Session Zero for RPGs. I love being a part of Session Zero in any #RPG, both as a GM and