Bitesize Payments

The expanded Substack essay is here https://bitesizepayments.substack.com/p/identity-privacy-and-surveillance

Orwell said privacy would be taken. Huxley said we'd hand it over.

On digital payments, we managed both.

And it's left us arguing about the wrong thing. Total transparency or total anonymity. Surveillance state or crypto shadows. Pick one.

That framing is tidy, and it's false — because it misses why cash worked in the first place. Cash was never a principled privacy design. It was an accident of physics. Paper can't phone home.

The middle ground we're mourning was never engineered. We just inherited it.

Which means if we want one now, we have to build it on purpose. And the tools already exist. Zero-knowledge proofs. Selective disclosure. Tokenisation. Prove you're over eighteen without showing your birth date. Prove the funds are clean without exposing the account. The digital euro's offline design keeps transaction details between payer and payee alone — and Parliament cleared the framework last month.

So the real question was never transparency versus anonymity.

It's whether anyone with power actually wants the middle.

Orwell and Huxley both assumed we'd have no choice. That part they got wrong.

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Payments Industry Insights

History of Payments

Payment System Explained

Corporate Payments Strategy

Payment Regulations Impact

ISO20022 Standard

Digital Payments Evolution

CBDC Advancements

Cryptocurrency in Payments

Financial Technology Education

Welcome back to Bitesize Payments: Digital. I’m Paul Thomalla.

There is an extended version of this on my Substack channel here.

Last time we talked about programmable money — the idea that value itself could carry rules and conditions. Today we’re going somewhere that sounds like pure upside but isn’t. We’re talking about settlement.

Specifically, we’re asking: what happens when settlement becomes instant? Not faster. Not near real-time. Actually, genuinely, irrevocably instant.

Because here’s the thing. We’ve been asking for this for decades. Faster payments. Remove the delays. Kill the middlemen. And we’re getting it.

But I’m not sure we’ve thought through what we’re actually asking for.

WHAT SETTLEMENT ACTUALLY MEANS

Let’s start with something most people get wrong every single day.

You tap your card. You see “payment approved.” You think the money moved.

It didn’t.

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Payments Industry Insights

History of Payments

Payment System Explained

Corporate Payments Strategy

Payment Regulations Impact

ISO20022 Standard

Digital Payments Evolution

CBDC Advancements

Cryptocurrency in Payments

Financial Technology Education

Welcome to Bitesize Payments: Digital. I’m Paul Thomalla.

The expanded Substack version is here :-

https://bitesizepayments.substack.com/p/programmable-value

Imagine a banknote that could decide whether you’re allowed to spend it.

Or a coin that automatically splits itself when certain conditions are met.

Or money that flows continuously from your account without you touching it, based on rules it’s executing.

 Money that acts. Money with agency. Money that doesn’t just sit there waiting for you to use it—but executes its own instructions. 

This sounds deeply strange. Unsettling, even.

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Payments Industry Insights

History of Payments

Payment System Explained

Corporate Payments Strategy

Payment Regulations Impact

ISO20022 Standard

Digital Payments Evolution

CBDC Advancements

Cryptocurrency in Payments

Financial Technology Education

Welcome to Bitesize Payments: Digital. I’m Paul Thomalla.

You use money every day. You work for it. You worry about it. You plan your life around whether you have enough of it.

But what is it?

 Not what does it buy. Not how does it work. Not who controls it.

What actually is it?

This seems like an obvious question. Of course we know what money is. It’s the thing in your bank account. The numbers on your screen. The stuff you use to buy coffee.

 But here’s what’s strange: when you try to define it — really define it — the answers start falling apart.

 Is it the paper notes? No, many people don’t touch paper anymore.

Is it the gold backing it? No, we left that decades ago.

Is it what the government says it is? Maybe, but governments are losing control of that story.

Is it what banks track in their ledgers? Possibly.

So what is it, exactly?

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Payments Industry Insights

History of Payments

Payment System Explained

Corporate Payments Strategy

Payment Regulations Impact

ISO20022 Standard

Digital Payments Evolution

CBDC Advancements

Cryptocurrency in Payments

Financial Technology Education

There is also an expanded read here on my Substack channel here

Remember the Gringotts scene in Harry Potter? Those carts racing through underground tunnels, goblins moving gold from one vault to another, the physical reality of value stored in specific locations, transported through space, guarded by dragons.

That's still how we think about payments. In 2025.

You tap your phone at the coffee shop. The payment happens instantly. Money moves from your account to the merchant's account.

Digital, right?

Not really.

What you experienced was a beautifully designed illusion. Behind that instant confirmation, your payment entered a system that would make a Victorian banker feel right at home. It got batched with other transactions. It waited for a clearing cycle. It went through settlement windows. It moved through correspondent banks. All concepts designed for a world where payments were physical objects—gold in carts—that needed to be sorted, transported, and reconciled.

Your shiny iPhone? It's just a very nice entrance to tunnels full of carts.

Send us Fan Mail

Payments Industry Insights

History of Payments

Payment System Explained

Corporate Payments Strategy

Payment Regulations Impact

ISO20022 Standard

Digital Payments Evolution

CBDC Advancements

Cryptocurrency in Payments

Financial Technology Education

There is an extended version of this on my substack channel here 

https://bitesizepayments.substack.com/publish/post/191148138?r=5zpu1m&utm_campaign=post&utm_medium=web&showWelcomeOnShare=true

In 1995, I picked up Nicholas Negroponte's Being Digital. The premise was simple but profound: the world was shifting from atoms to bits. Physical things were becoming digital information, and that transformation was going to change everything about how we live, work, and interact.

I was entering the payments industry around that time, and I genuinely believed I was joining that transformation. That payments were making the leap from atoms to bits right alongside everything else.

That was thirty years ago.

And here's what I've learned: we never made that leap. Not really.

Now, the payments industry will tell you we're digital. We've got mobile wallets, instant payments, ISO20022, cloud infrastructure, APIs everywhere. We tap our phones instead of swiping cards. We process billions of transactions in seconds. We think we're sophisticated. Advanced. Digital.

But here's the truth: once you get past that thin layer of shiny technology, we're running on systems that were designed seventy years ago.  This series is about getting to digital Payments and what we need to think and worry about. 

Send us Fan Mail

Payments Industry Insights

History of Payments

Payment System Explained

Corporate Payments Strategy

Payment Regulations Impact

ISO20022 Standard

Digital Payments Evolution

CBDC Advancements

Cryptocurrency in Payments

Financial Technology Education

Welcome back to Bitesize Payments Digital.

The expanded Substack version is here:

 https://bitesizepayments.substack.com/p/the-sovereignty-container-breaks

Today I’m going to cover a topic that one way or another is front and centre in Europe in particular. But frankly it’s a global issue. My aim here isn’t to be political but to try and explain.

Today I’m covering: The Sovereignty Container Breaks.

 You’re in a café in Paris. You tap your phone to pay. Four euros fifty disappears from your account. The barista nods. Transaction complete. 

Do you know what currency actually moved?

Do you care?

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Payments Industry Insights

History of Payments

Payment System Explained

Corporate Payments Strategy

Payment Regulations Impact

ISO20022 Standard

Digital Payments Evolution

CBDC Advancements

Cryptocurrency in Payments

Financial Technology Education

After more than 30 episodes, I wanted to take a moment to reflect.

This isn’t a deep dive into real-time payments, standards, or compliance. This episode is about why Bitesize Paymentsexists in the first place — and what I’ve learned from doing it.

I started the series to give back. To share what I’ve learned from years in payments — and from the many brilliant people I’ve worked alongside. The goal was always to make complex topics clearer, more human, and a little easier to navigate.

In this final episode of Series 1, I talk about:

• Why I launched Bitesize Payments
• What the industry sometimes misses when it doesn’t share or mentor
• What we’ve covered so far — from cheques to CBDCs, from compliance to sovereignty
• Who the key players really are — banks, merchants, citizens, regulators
• And what Series 2 might explore as we move into a truly digital era

Whether you listened to one episode or the whole series, thank you.

This podcast has been a joy to create — and I hope it’s helped connect a few dots along the way.

Send us Fan Mail

Payments Industry Insights

History of Payments

Payment System Explained

Corporate Payments Strategy

Payment Regulations Impact

ISO20022 Standard

Digital Payments Evolution

CBDC Advancements

Cryptocurrency in Payments

Financial Technology Education

In this episode of Bitesize Payments, we zoom out from the usual rails and rules of payments to explore a much bigger force shaping the industry: sovereignty. From the ancient control of coinage by kings to today’s battles over digital currencies, data, and cross-border standards, sovereignty has always been about power — who has it, who wants it, and what happens when that power is challenged.

We unpack the history, the players (from governments and central banks to Big Tech and crypto), and the growing tension between national control and global commerce. As digital ecosystems evolve, what does sovereignty mean for the future of payments — and who gets to decide?

This one’s about more than your pound, dollar, or euro…..

Here we go....

Send us Fan Mail

Payments Industry Insights

History of Payments

Payment System Explained

Corporate Payments Strategy

Payment Regulations Impact

ISO20022 Standard

Digital Payments Evolution

CBDC Advancements

Cryptocurrency in Payments

Financial Technology Education

Welcome back to Bite-Size Payments, where we dive into their history, how they work, and, of course, who does what.  
 
Today, we’re tackling compliance—yes, that lovely, complex topic that often seems like it gets in the way. But it’s essential, and we’ll explain why. Yes, it’s complex, but it’s also the backbone of a secure financial system. 

Today, I am joined by the rock star that is Susan Hall to walk you through it...... 
 
Here we go…  
 
 

Send us Fan Mail

Payments Industry Insights

History of Payments

Payment System Explained

Corporate Payments Strategy

Payment Regulations Impact

ISO20022 Standard

Digital Payments Evolution

CBDC Advancements

Cryptocurrency in Payments

Financial Technology Education