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Chaos Testing with mirrord

https://metalbear.com/blog/chaos-testing-mirrord/
1•aviramha•57s ago•0 comments

Obsidian and Claude Code: The Setup I Use Every Day

https://lukasvonkunhardt.com/obsidian-claude-code-setup/
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NASA's New Space Telescope Is Poised to Discover Hidden Facets of the Universe

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https://chartkidmatt.com/p/tech-is-stealing-home
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Alt Text Hall of Fame

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Polyglot (Computing)

https://en.wikipedia.org/wiki/Polyglot_(computing)
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It takes 5 cloud services to hear my doorbell

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https://arxiv.org/abs/2601.06007
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The Craziest Stock Market Has Turned into a Fright Ride

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Show HN: What one invoice actually costs across 33 invoicing plans

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BifrostDNS – A mock DNS server with a REST API, for testing DNS-dependent flows

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A Hitchhiker's Guide to Reinventing a Prolog Machine

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Run manual QA test cases in a real browser with an AI agent

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1•Muhammad-21•17m ago•0 comments
Open in hackernews

Credit Card Rewards Became a $9.2B Wealth Transfer

https://www.library.hbs.edu/working-knowledge/how-credit-card-rewards-became-multibillion-dollar-wealth-transfer
59•conbrian•46m ago

Comments

Forgeties79•23m ago
> Because merchants charge everyone the same price regardless of how they pay, those fee costs are factored into prices for all shoppers. However, credit card users get that money back and then some through rewards, while cash and debit users get little or nothing.

>The result: People paying cash face the equivalent of a 26% higher sales tax than premium credit card users shopping at the same store.

I am surprised this never occurred to me or has come up at all in discussions with people (in the context of rising costs/inflation specifically). I’ve literally never considered this compounding effect until now. It’s so obvious of course, it just never even crossed my mind.

toomuchtodo•22m ago
Many restaurants I’ve eaten at lately surcharge credit cards with a 3% fee, offering a discount if you pay cash. This is the way to nullify this regressive policy until the US commercial banking system offers instant payments for merchants, internalizing the externality of the interchange fee. If you pay with card, you

US FedNow instant payments went live three years ago, and can move $10M per transaction for a few pennies per transaction.

FedNow Is Live - https://news.ycombinator.com/item?id=36801491 - July 2023 (1022 comments)

(A gap in legislation was not mandating offering FedNow capabilities to your customers as a condition of your banking license as a bank; I expect this to be patched eventually)

steveBK123•11m ago
The problem is the way the US credit/debit card systems are setup, there's not much of a discount/surcharge that would make me switch usage to debit.

If my credit card number gets stolen, zero money ever leaves my account. It simply gets contested before the monthly bill is even due, and cancelled. I have probably had number stolen 5 times in 20 years, and its never cost me a cent. Zero dollars every left my accounts even temporarily.

If my debit card number gets stolen, the money is out of my checking account immediately. Mortgage payments and other bill payments might fail, and the onus is on my to chase up the bank to get charges reversed and money returned to my account.

internet2000•9m ago
Not only would the 3% fee not make me blink, as my cards have 3% cash back for dining, I doubt I'd change my behavior even at a 5% discount. If anything it'd dissuade me slightly from patronizing the restaurant.

Credit cards are convenient and cash isn't. The genie is out of the bottle, no way to make people move back to cash.

pistoriusp•22m ago
Same, that percentage seems absurd though.
cge•15m ago
The only way I can interpret the percentage is that they are stating the increased cost as a percentage of sales tax rather than a percentage of the sale, such that "26% higher sales tax" in a state changing 10% sales tax would mean paying 2.4% more in total. That choice seems misleading, but does make the percentage make sense.
post-it•10m ago
That is what it says after all, it's pretty explicit.
nilamo•21m ago
And there I was thinking it was obvious that merchants wouldn't just eat cc fees, and would cushion all prices to account for their costs.
r3trohack3r•11m ago
I was surprised by this number too - and I’m pretty sure it’s a clever wording trick to inflate the percentage:

> equivalent of a 26% higher sales tax than premium credit card users shopping at the same store.

I do not think the sale price is increased by 26% - which doesn’t square with a 1% to 3% fee - I think they pay approximately 26% more in “sales tax” so you’re paying 26% more than the 7% tax.

slicktux•8m ago
I believe a similar thing happened with fast food and food delivery fees. It costs money to be listed on the food delivery app so fast food chains started charging everyone the same price to offset the cost of being listed on the apps.
aurareturn•21m ago
I always wondered why people in America would ever pay by cash or credit card - unless they are laundering that cash.

Otherwise, you're giving up 1-3% discount.

Set auto-pay on your credit card to pay in full every month. I've never once paid for credit card interest. I think there's a term inside credit card companies for people like me: leeches or something like that.

MattGaiser•19m ago
Most people can’t optimize for 1-3%. Life is flooded with 1-3% choices.

Even as someone who is a credit card optimizer, I also ignore numerous 1-3% choices a day.

Many people also spend more than they can cover on it.

hvb2•18m ago
> Otherwise, you're giving up 1-3% discount.

I would be curious what percentage of people actually qualifies for a card with over 2% cashback especially without a monthly fee. My guess is that that percentage is very low.

High earner/spender, sure but that's not most people

svpk•13m ago
I know that Discover has a card with a 5% discount category that changes once a quarter. Everything not in the category gets 1%. It's not hard to get the card (or at least wasn't) and was frequently advertised to college students.

If you combine that with a card that gives 2% on everything than it wouldn't be hard to average over 2% cashback as long as you were mindful about using the discover card for qualifying purchases and the 2% card for everything else.

greenavocado•7m ago
SXX•21m ago
Important context: this is US thing. EU capped interchange fees at 0.2% for debit and 0.3% for credit cards.

So in US card processing is x5-x10 more expensive.

criddell•17m ago
How generous are credit card rewards in the EU?
bluebarbet•12m ago
Presumably not very, because the large majority of Europeans do not use credit cards.
SXX•10m ago
I'd say it heavily depend on country. In some of them they are popular, but in others even debit cards is something only few people have.
SXX•11m ago
Normal cards not very generous. Fintech can sometimes give 1% cashback capped at 30-50-100 EUR.

Some weird crypto stuff can give more cashback, but it mostly for scheming nerds.

AnssiH•4m ago
My understanding is that they are much less generous on average compared to U.S.

E.g. for now I have the most premium card offered by my bank (50€/mo), and it gets me extra product insurance, rental car insurance, travel insurance, free lounge access, and some other things like that, but no cashback or similar bonuses.

I think some premium cards do offer cashback nowadays, but they are in the minority. My experience is limited to Finland, though.

puelocesar•21m ago
And those same American companies want the US government to intervene in other countries to try to kill their local alternatives
gustavus•20m ago
So i may be an anomaly but I'd say 20-40% of all places I shop have a specific fee to cover CC transactions using a CC vs Cash.
criddell•7m ago
There are places I go to that only accept credit or debit cards. No cash or cheques.
roland35•17m ago
Patrick McKenzie (patio11 fame) had a great blog post in credit card rewards

There is a lot that goes into it, and it is interesting how customers like me who literally never have carried interest and have to made thousands of $ in rewards over the years still make the banks money....

https://www.bitsaboutmoney.com/archive/anatomy-of-credit-car...

nsedlet•10m ago
Credit cards also transfer wealth from people who pay interest to people who don’t.

It’s a silly system, where everyone has to invest their time (optimizing for rewards, avoiding interest) in an ultimately negative sum game. I hate it so much.

Tepix•8m ago
Credit card owners benefit. But they also pay: With their data.
dukeofdoom•4m ago
So if anyone is trying to picture what 9.2 would buy. The new bridge between US and Canada (Gordie Howe) was 4.6 billion. So that is 2 giant bridges + related infrastructure ... worth of wealth transfer. That bridge had some corruption / payoffs, so we should discount that by 10% wealth transfer as well.
> as long as you were mindful about using the discover card for qualifying purchases and the 2% card for everything else.

And that's the rub. Credit card companies know most people won't be too mindful most of the time about their spending habits.

Xirdus•13m ago
My first US credit card was a 4-3-2-1% rewards program and I had literally zero income at the time. I was told by the banker, "oh you can't do that right away, you must first get a secured card to build your credit score, after a year you can try applying for real", but I told them I don't care and to send the application anyway, and I've got it.

Ever since then, I wondered how much of the "not qualifying" is due to misinformation like this.

ixwt•11m ago
I have a 2% cash back credit card from my bank, with no monthly fee. It started as a 1% cash back card around a decade ago, and slowly crept up to 2%. It's a nation wide credit union that has certain requirements to join though.
strix_varius•17m ago
This presupposes the ability to get a credit card and the confidence of sufficient funds when that auto payment hits.
sokoloff•15m ago
If the alternative was paying cash, cash has an even more demanding level of confidence of sufficient funds required and it applies earlier with no flexibility.
Xirdus•17m ago
A lot of it is to enable the small business owners to hide their real income. At least that's how it works in immigrant communities.
ChrisMarshallNY•15m ago
I paid a lot of credit card interest, as a yute, but, since getting married, I have paid in full. Been over 30 years. Leeches rule!

At one time, credit card companies forced vendors to charge the same, whether cash or credit, but that seems to have fallen by the wayside.

The problem is, is that cash is becoming less and less acceptable.

In a nearby town, you can't pay for parking, with cash. I have seen credit-card-only vending machines. A lot of restaurants have iPads at the table, and you never see anyone but the bus[boy|girl|whatever], bringing you your food.

internet2000•11m ago
Prices don't go down, they only ever go up.

There is no situation in which interchange fees get slashed and prices go down across the board by 3% to make it worth it for card users.

throw0101a•6m ago
> Prices don't go down, they only ever go up.

Well, there was that time in the 1930s.

EliRivers•9m ago
I've heard such people referred to as deadbeats.
cfiggers•6m ago
When I and my (still fairly young) family needed to move cross-country, my wife and I accepted a credit card offer with 0% APR for the first year and put all our moving expenses on it. Then once we settled, we paid it down a bit at a time each month, and then right before it would have started charging interest we paid the rest as a lump sum.

Really helped us float the moving company and also some DIY renovations on our house that we didn't have all the cash on hand to pay for outright. And we didn't pay a thin dime for the privilege.

throwaway_20357•4m ago
Usually ~1%. Some direct cashback, some via rewards points (e.g. 1.5 AMEX MRP earned per EUR are roughly worth 1ct).
tiffanyh•14m ago
To be more specific, this is a US credit card topic.

Debit card fees are capped in the US, yet I’ve never received a discount from a merchant for paying with debit instead of credit.

As such, I just pay with credit and have never understood this argument.

post-it•13m ago
That's what makes it a wealth transfer, from debit card users to you.
KolmogorovComp•11m ago
> As such, I just pay with credit and have never understood this argument.

Because the merchant pass the higher processing cost to all customers.

gcr•10m ago
In NYC, most independent shops give a debit card discount / credit card surcharge.
greenavocado•10m ago
Once ever I was requested to either pay cash or via debit in a cafe in Montreal
fHr•9m ago
Good for you as you're smart but less smart people don't do this and then get scammed legally.
account42•13m ago
Still affects us as sticker prices are not set independently. Even if you exclusively buy locally, $ = € is extremely common for MSRP.
dtech•8m ago
That's because the $ prices are without VAT