Understand

You might be wary of using digital currencies, but you probably already do. Salaries, benefits and pensions are now paid direct to banks, and when you buy a coffee, you may well use a contactless card to pay, without a flutter of a 5 pound note in sight. So what are online cryptocurrencies like Bitcoin, and why won't some people touch those with a barge pole? And when you hear about them, another word always pops up - Blockchain. What does it do? And how could both become important when we start to use the next version of the Internet, called web 3.0? Technology has already completely altered our lives, and Artificial Intelligence may transform our world to an even greater degree. This series is your chance to get back to basics and really understand key technology terms. What's an algorithm? where is "the Cloud" and what are VR and AR? What's the difference between machine and deep learning in artificial intelligence, and is it just our jobs under threat, or is it much worse than that? And before we get to the destruction of humanity, should we all be using Bitcoin? Our experts will explain in the very simplest terms everything you need to know about the tech that underpins your day. We'll explore the rich history of how all these systems developed, and where they may be going next.Presenter: Spencer Kelly Producers: Ravi Naik and Nick Holland Editor: Clare Fordham Production Coordinator: Janet Staples

We all get that sinking feeling when we accidentally delete a valuable photo or document, but there's now a good chance you can find a backup copy - thanks to the Cloud. Cloud computing has drifted into our lives without many people even realising - apart from those irritating emails, offering to sell you ever greater amounts of storage space. Some laptops now have very little memory built-in, and rely on the Cloud to store files. But where does it all that information go? What does the Cloud look like and where exactly is it? How are vast amounts of computer memory and processing power being put to use? And are those precious photos of your pet cat being kept securely?Technology has already completely altered our lives, and Artificial Intelligence may transform our world to an even greater degree. This series is your chance to get back to basics and really understand key technology terms. What's an algorithm? How does Broadband work and what exactly is Blockchain? What's the difference between machine and deep learning in artificial intelligence, and is it just our jobs under threat, or is it much worse than that? And before we get to the destruction of humanity, should we all be using Bitcoin? Our experts will explain in the very simplest terms everything you need to know about the tech that underpins your day. We'll explore the rich history of how all these systems developed, and where they may be going next.Presenter: Spencer Kelly Producers: Ravi Naik and Nick Holland Editor: Clare Fordham Production Coordinator: Janet Staples

Do you know your Blockchain from your Bitcoin, or your Virtual reality from your Augmented Reality? Are you clueless about AI but are worried it might take your job?If so, you’ve come to the right place.Welcome to Understand: Tech and AI.The pace of change in technology is daunting - and new developments are happening all the time. Artificial Intelligence has exploded into the public consciousness. So it’s ever-more important for us to understand where these technological enhancements are coming from and how we can best use them.In each episode we'll demystify all the technology that’s become part of all our daily lives, and take the sting out of those buzzwords that tech companies are so fond of.On Understand Tech and AI we’ll take one concept per episode, explain what it is and what it does - without any technical jargon - so that you can get a better grasp of the technology that’s in your hand, on your desk or in your living room.Welcome to Understand: Tech and AI from BBC Radio 4. Subscribe now on BBC Sounds.Presenter: Spencer Kelly Producers: Ravi Naik and Nick Holland Editor: Clare Fordham

The cost of living crisis is putting more pressure on more people - but what happens when that pressure becomes too much, and is bankruptcy always a bad thing? Professor Diane Coyle explains the processes and wider economic impact of bankruptcy, and Dr Victoria Bateman takes us back to the very beginning of the idea in the time of Henry VIII. Everything you need to know about the economy and what it means for you. This podcast will cut through the jargon to bring you clarity and ensure you finally understand all those complicated terms and phrases you hear on the news such as Inflation, GDP, National Debt, energy markets and more. We’ll ensure you understand what’s going on today, why your shopping is getting more expensive or why your pay doesn’t cover your bills.Guest: Professor Diane Coyle, the Bennett Professor of Public Policy at the University of Cambridge. Producer: Louise Clarke-Rowbotham Researcher: Beth Ashmead-Latham Technical Producer: Nicky Edwards Editor: Clare Fordham Theme music: Don’t Fret, Beats Fresh MusicA BBC Long Form Audio Production for BBC Radio 4

Collectively, our individual financial decisions have a big impact on what the wider economy does. That includes how we manage our own money, including what we buy and how we buy it. One way we make large purchases, smooth out big bills and sometimes just spend some cash we can’t afford - is credit. In this episode Dr Victoria Bateman looks back to the Tallyman in the 19th century, a very early way of shopping with credit. We’ll explore what exactly credit is and how we use it. Everything you need to know about the economy and what it means for you. This podcast will cut through the jargon to bring you clarity and ensure you finally understand all those complicated terms and phrases you hear on the news such as Inflation, GDP, National Debt, energy markets and more. We’ll ensure you understand what’s going on today, why your shopping is getting more expensive or why your pay doesn’t cover your bills.Guest: Prof John Gathergood, Professor of Economics at the University of Nottingham Producer: Louise Clarke-Rowbotham Researcher: Beth Ashmead-Latham Technical Producer: Nicky Edwards Editor: Clare Fordham Theme music: Don’t Fret, Beats Fresh MusicA BBC Long Form Audio Production for BBC Radio 4. This programme has been edited to change a section of music.

Why are the rich, rich and the poor, poor, and was it always this way? Tim Harford explains what’s happened to inequality over the last 100 years in the UK and why things might be better than you think. Economic historian Victoria Bateman explains the surprising effect The Great Plague had on income and gender equality. Everything you need to know about the economy and what it means for you. This podcast will cut through the jargon to bring you clarity and ensure you finally understand all those complicated terms and phrases you hear on the news. Inflation, GDP, Interest rates, and bonds, Tim Harford and friends explain them all. We’ll ensure you understand what’s going on today, why your shopping is getting more expensive or why your pay doesn’t cover your bills. We’ll also bring you surprising histories, from the war hungry Kings who have shaped how things are counted today to the greedy merchants flooding Spain with Silver coins. So if your eyes usually glaze over when someone says ‘cutting taxes stimulates growth’, fear no more, we’ve got you covered.Guest: Xiaowei Xu, Senior Research Economist at the Institute for Fiscal Studies Producer: Phoebe KeaneResearchers: Drew Hyndman and Kirsteen KnightEditor: Clare FordhamTheme music: Don’t Fret, Beats Fresh MusicA BBC Long Form Audio Production for BBC Radio 4

Why is it so hard to save for retirement? Will future generations even get a pension? Why is the pension age rising and what is the state pension age? Tim Harford explains the problem an aging population is causing for the state pension and explores the gender pension gap. Economic historian Victoria Bateman tells the story of the very first pensions in the UK. Everything you need to know about the economy and what it means for you. This podcast will cut through the jargon to bring you clarity and ensure you finally understand all those complicated terms and phrases you hear on the news. Inflation, GDP, Interest rates, and bonds, Tim Harford and friends explain them all. We’ll ensure you understand what’s going on today, why your shopping is getting more expensive or why your pay doesn’t cover your bills. We’ll also bring you surprising histories, from the war hungry Kings who have shaped how things are counted today to the greedy merchants flooding Spain with Silver coins. So if your eyes usually glaze over when someone says ‘cutting taxes stimulates growth’, fear no more, we’ve got you covered.Guest: Dr. Rajiv Prabhakar, The Open UniversityProducer: Phoebe KeaneResearcher: Drew Hyndman Editor: Clare FordhamTheme music: Don’t Fret, Beats Fresh MusicA BBC Long Form Audio Production for BBC Radio 4

What is a recession and what causes a recession? Whether something suddenly makes you poorer or just makes you worry about becoming poorer, when you cut your spending in the shops, this affects other people and ripples through the economy. Tim Harford explains the role a government can play in pulling a country out of a recession and Cambridge University Economic Historian Victoria Bateman tells the story of one of our longest recessions that started in 1921. Everything you need to know about the economy and what it means for you. This podcast will cut through the jargon to bring you clarity and ensure you finally understand all those complicated terms and phrases you hear on the news. Inflation, GDP, Interest rates, and bonds, Tim Harford and friends explain them all. We’ll ensure you understand what’s going on today, why your shopping is getting more expensive or why your pay doesn’t cover your bills. We’ll also bring you surprising histories, from the war-hungry kings who have shaped how things are counted today to the greedy merchants flooding Spain with silver coins. So if your eyes usually glaze over when someone says ‘cutting taxes stimulates growth’, fear no more, we’ve got you covered.Guest: Professor Richard Davies, University of BristolProducer: Phoebe KeaneResearcher: Drew HyndmanEditor: Clare FordhamTheme music: Don’t Fret, Beats Fresh MusicA BBC Long Form Audio Production for BBC Radio 4