Trung Phan Profile picture
Nov 4, 2021 22 tweets 12 min read Read on X
Birkin Bags are the crown jewel in Hermès $170B+ luxury empire. One bag can cost ~$50k and the record sale is $500k.

Why so pricey? Hermès has perfected the psychology of scarcity and demand (or as its CEO Axel Dumas describes it: “creating desire”).

Here’s a breakdown🧵 Image
1/ Hermès is the world's top ultra-premium lux brand. And it runs its own playbook with:

◻️Few ads
◻️No marketing dept
◻️Few celebrity endorsements

Rather, Hermès creates desire for its products (including Birkin Bag) in 2 powerful ways: *managed scarcity* and *managed desire*. Image
2/ Long heritage

A powerful source of scarcity is history. Founded in 1837 by Thierry Hermès as a leather workshop, Hermès passed through 6 family generations and is now run by the Dumas clan.

(Lux competitor LVMH knows the power of heritage:it owns 10+ brands over 100yr old) Image
3/ One-of-a-kind founding story

Humans are attracted to narrative, which Hermès fosters in all of its products.

The Birkin Bag’s founding story has become legend, which adds another layer of scarcity as it is obviously exclusive to the product: Image
4/ Rare craftwork

Birkin craftsmanship takes 2yrs of training (Hermès only trains 200 people per year). Each one takes 20-25hrs to make, entirely by hand w/ pricy inputs (leather, croc skin, gold).

The Dumas Credo:“We don’t have a policy of image, we have a policy of product”. ImageImageImageImage
5/ Perfection takes time

Hermès products are held to the highest industry standard (can't mass manufacture).

The dedication began w/ Thierry Hermès making leather horse saddles for the Napoleons: the “saddle stitch” had to be perfect to handle animal power and not come undone.
6/ Tight supply

The rigorous craftwork limits the Birkin supply:an estimated 12k are made a year (infamously Hermès burns bags w/ slightest defect).

Each one is truly *different*.

There are ~200k Birkin Bags in circulation (by comparison, Coach sells 4m+ handbags a *year*). Image
7/ Managing demand

In economics, a high demand product is rationed by price. Hermès rations demand by *queue*, making the product even more sough after.

It does so by managing demand (aka “desire”) at every level: From a network of 300+ stores to sales staff to shoppers. ImageImageImage
8/ Stores battle over goods

Twice a year, 1k store reps go to Hermès HQ in Paris and curate collections.

Hermès doesn't say how many Birkins it's making and forces each store to stock items in all categories (shoes, watches, fragrances) to ensure the whole line is showcased. Image
9/ Flipped shopping model

Shoppers — even very rich ones — can’t just walk in a store and ask for a Birkin. Hermès has to *offer* them the chance to buy it (think about that).

Earning an offer takes work and the added effort increases the perceived value (aka"The Ikea Effect") Image
10/ Work = buy other stuff

To be considered for a Birkin, a shopper has to have a relationship with sales staff. The way to develop that relationship is to buy other good (jewellery, watches, shoes, accessories).

This buying psychologically *commits* a shopper to Hermès. Image
11/ Unofficial waitlist

Once in good graces, Hermès may offer you a Birkin, which is put on order but you still have to wait.

Months-long anticipation creates more perceived value. Sales staff isn't even sure which colors are available. You usually just take what they receive.
12/ Social Proof

Access to Birkins is its own currency (not all rich people can get it). As the ultimate status signal, celebrities happily flaunt their “hard-earned” collections (above other lux items).

It creates mass desire, which makes the tight supply even more valuable. ImageImageImage
13/ The Birkin Halo Effect

With limited Birkin access, “consumer surplus” spills over to other Hermès products. People buy $1k scarves or $3k wallets to taste the magic.

Expertly managing Birkin's supply and desire helps Hermès bring in $7B+ a year and it's now worth $170B+. Image
14/ Birkin = great investment

Finally, Birkin Bags are at the vanguard of "handbags as an asset class".

A 2016 study found that Birkin -- over the preceding 30 years -- notched annual returns of 14%, outpacing the S&P 500 at 12% and Gold at 2% (LOL). Image
15/ If you enjoyed that, I write threads breaking down tech and business 1-2x a week.

Def follow @TrungTPhan to catch them in your feed.

Here's a related one that might tickle your fancy:
16/ FYI: To write this thread, I used the Synth browser to collect and organize my ideas (**DISCLAIMER: I’m an investor)

Here’s a cool feature: auto-ML tagging of all the Hermes-related articles I’ve read.

Check it: synth.app
18/ LVMH built up a secret ownership stake in Hermes in early 2000s.

By 2010, it had a 17% position and the Hermes clan had to join together to beat back the LVMH takeover attempt.

🔗 economist.com/business/2020/… Image
20/ While Hermes largely avoids official celebrity endorsements, LVMH def taps famous people for their campaigns. ImageImageImageImage
An artist made virtual Birkin Bags (meta-Birkins). Hermes says its trademark infringement. Now, meta-Birkins are also being ripped off.

(Side note: Hermes says it’s not doing NFTs b/c it values the “tangible expression of handcrafted physical objects”)

thefashionlaw.com/from-baby-birk…

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More from @TrungTPhan

Jan 16
Matt Damon and Ben Affleck on Rogan taking about how Netflix has changed filmmaking.

A major considerations is dealing with distracted viewers. To keep them tuned in, “you re-iterate the plot 3-4x in the dialogue because people are on their phones.”

Then, in action films, you change the ordering of climatic fights.

In traditional action films, you’d have “three set pieces” in every act (I, II, III) and each would “ramp up” (spend the big money on third set piece).

But streaming has to hook viewers within 5 minute, so the incentive is to put a major battle or action sequence much earlier.

Also, the directors have less incentive to make a film look great because so many people watch on laptops and phones.

They do say that streaming allows for more bets on risky projects since the theatre economics are geared towards IP, sequels and super-heroes.

Example: an independent film with a $25m budget would spend $25m on marketing (1:1 ratio). But since it splits box office with the theatre, the film needs to make $100m (1/2 of which is $50m) just to break even.

They’re realistic about the state of film and call it a supply-demand issue. If the demand is for at-home viewing (eg. Netflix 300m+ subs), then filmmaking approach will change to feed the algo.

When there’s demand for theatre, Damon will go team up with Christopher Nolan to make “The Odyssey”.
A similar dynamic is happening to streaming TV shows. The incentives for story arc, dialogue and character types warped thr medium.

I explain it more here: readtrung.com/p/the-case-aga…
Damon cooks.

Here is full Rogan: youtu.be/AVEZBy1uAk8?si…

Here is Hot Ones: youtu.be/yaXma6K9mzo?si… x.com/trungtphan/sta…
Read 4 tweets
Jan 15
The Economist has a great piece on strategy sportsbetting apps use to throttle smart bettors:

▫️Skilled players are “sharps” and given “stake restrictions” if they play too well (bets are capped).

▫️Rest of players called “Square”.

▫️In 2025, 4.3% of active UK accounts had a “stake factor” below the maximum bet allowance of 100%.

▫️Sportsbook will take bets with a profit margin as low as 4.5%.

▫️If they are able to do good “player-profiling” and keep the “sharps” from playing, the profit margin can reach 10-20%.

▫️As important as keeping out “sharps” is hooking “whales”, the deep-pocketed players that are willing to keep playing (and losing) large sums.

▫️Some “whales” are actually “sharps” in disguise, though. They’ll lose a bunch of bets to lull the sportsbook then put down a massive bet when they have an edge.

▫️While there is a risk of a “whale” being a “sharp”, the value of a real “whale” is so high that sportsbook will take the risk

▫️“In March 2024 PointsBet, raised its share of online sports-gambling revenue in New Jersey from 11% to 24% after wooing a single cash-spouting customer away from DraftKings.” (I can confirm that this wasn’t me).

▫️How sportsbook profile players:

> Playing on Mobile is a good sign (where majority of people play)
> Playing on PCs is a bad sign (it’s easier to compare odds and run models)
> E-wallets are a red flag (sportsbooks prefer debit direct deposit that can attach a player to a single account; e-wallet is more anonymized and players can move cash between sportsbook more quickly to shop for the best odds)
> Women bettors are a red flag (most bettors are men and “sharps” often use women to place bets)

▫️First wagers are a major tells (typical bettors go after top leagues — NFL, NBA, EPL — and do so near the start of the game).

▫️Popular bets for “squares”: who will win, scoring margins and how star player will perform (also, they love multi-leg parlays).

▫️“Sharps” go after less popular leagues and place bets as soon as odds are published, when they are most mispriced. They also go after less popular bets such as “pts in Q3” or stats from a random player (“Sharps” rarely do parlays and don’t withdrawal winnings often).

▫️One gambling consultant tells The Economist that “By the time a customer places his first bet, [sportsbooks] are 80-90% certain they know the lifetime value of the account.”

▫️”Sportsbooks look at a player’s ‘closing-line value’ — a measure that compares the odds at which he bets with those available right before a match begins. If it is consistently ahead of the market over his first ten wagers, he is highly likely to beat the book in the long run.”

▫️Sportsbook mathematically monitor players and creates a new risk score every 6-8 hours (risk score = estimate of probability that customers will wind up unprofitable).

▫️E-wallet users, women and bets over $100 are flagged. These suspicious bettors are given 30% of maximum bet (and proven sharps only allowed 1%).

▫️High-skilled players will often get a “beard” to bet on their behalf. Most sportsbooks ban this practice but it is widespread.

▫️Safest “beards” are close friends and relatives because you can mostly rely on them to pay out any winnings. The “beards” try to look like degens (playing at 3am, bet non-stop and doing ridiculous parlays) before placing a winning bet.

▫️The most effective strategy for “sharps” is “whale-flipping”. Find a losing gambler, then ask to put a (likely) large winning bet amongst their pool of guaranteed losers.

▫️Once “sharps” max out the people they can use as “beards”, they tap professional networks called “movers”. These “movers” employ a bunch of “mules” who can put down bets on the behalf of the network. Low-end movers charge 10-20% while high-end movers charge 50% of winnings.

***

Lots other great details here: economist.com/christmas-spec…Image
On a related note, I wrote on how slot machines make $10B+ a year in Las Vegas (~70% of all casino gaming revenue).

The history, psychology and design of the device…which went from a throwaway game to the industry’s “cash cow” and “gambling’s crack cocaine.”readtrung.com/p/the-ludicrou…
Read 4 tweets
Nov 19, 2025
Satya Nadella on why Microsoft Excel has been so durable after 40 years:

> the power of lists and tables
> the malleability of the software (“a blinking canvas”)
> spreadsheet software is Turing complete (“I can make it do everything”)
> it’s the world’s most approachable programming environment (“you get into it without even thinking your programming”)
fantastic pod ep: Image
Read 4 tweets
Jul 28, 2025
The invention of bánh mì is a combination of climate, trade and urban layout of Saigon in late-19th century designed by French colonist.

When the French captured the area in 1859, most economic activity in the region took place along the Saigon river.

The population built makeshift homes tightly bundled by the river banks. Outgrowth from this eventually lead to narrow alleyways between many buildings that is trademark of the city (the Khmer named the region Prey Nokor then French renamed it Saigon and then it was renamed to Ho Chi Minh City in 1976 after end of Vietnam War).

Over decades, the French created European street grids and built wide Paris-type boulevards in the city to funnel commerce to larger markets (also make the city easier to administer).

It was at these markets that French baguettes were introduced and traded.

Bánh mì bread is known for being flaky and crispy on the outside while fluffier on inside (so god damn good).

Two features of Saigon helped create this texture:

▫️Climate: The heat and humidity in Southeast Asia leads dough to ferment faster, which creates air pockets in bread (light and fluffy).

▫️Ingredient: Wide availability of rice meant locals added rice flour to wheat flour imports (which were quite expensive). Rice flour is more resistant to moisture and creates a drier, crispier crust.

Fast forward to the 1930s: the French-designed street layout is largely complete. Now, the city centre has wide boulevards intersected by countless narrow alleyways.

The design was ideal for street vendor carts. These businesses were inspired by shophosue of colonial architecture to sell all types of goods as chaotic traffic rushed by.

Vietnam has some of the most slapping rice and soup dishes, but many people on the move in the mornings wanted something more portable and edible by hand.

Bánh mì was traditionally upper class fare but it met the need for on-the-go food.

Just fill the bread with some Vietnamese ingredients (braised pork, pickled vegetable, Vietnamese coriander, chilies) along with French goodies (pate).

Pair it with cà phê sữa đá (aka coffee with condensed milk aka caffeinated crack) and you’re laughing.Image
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Haven’t lived in Saigon for 10+ years but ate a banh mi every other day when I did.

While there, I also sold a comedy script to Fox (pitch: “The Fugitive meets Harold & Kumar set in Southeast Asia”).

It never got made but fun story to retell: readtrung.com/p/im-making-a-…
Classic episode Image
Read 4 tweets
Jul 26, 2025
the most underrated winner of the AI boom is the 15,000 person Caribbean island of Anguilla (which has a GDP of ~$320m) Image
The research team is happy to announce that we’ve played our part contributing to Anguilla’s windfall.

We also paid $99 to GoDaddy to see if we could secure one more .AI domain. Bearly.AIImage
Polynesian island Tuvalu has an even smaller population (10,000)!!
Read 4 tweets
Jun 8, 2025
someone used Veo3 to make Moses as a YouTuber live-streaming the Exodus
accent does change at end: reddit.com/r/ChatGPT/s/bO…Image
On-demand history vids like this in few years with Google Veo very plausible.

I previously wrote on YouTube as greatest athletics learning machine ever…could get souped up: readtrung.com/p/youtube-the-…
Read 4 tweets

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