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Too fast for Minecraft? Apr 04, 2021

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The impressive speed records of a well-known gamer called Dream for the video game Minecraft have come under scrutiny. Many say that Dream has completed speed runs in such a fast time that it doesn’t seem possible. Are these suspicions correct? We speak to stand-up mathematician Matt Parker who has looked at the probabilities on the elements of chance in the game to see if these records seem plausible.

In praise of Covid Data Mar 27, 2021

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On this week’s programme we talk to Clare Griffiths from the UK’s coronavirus dashboard and Alexis Madrigal from the Atlantic Magazine’s Covid Tracking Project in the US.

Deciding when to suspend a vaccine Mar 20, 2021

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Many countries recently decided to suspend the use of the AstraZeneca coronavirus vaccine over fears it was increasing the risk of blood clots. The European Medicines Agency and the WHO called on countries to continue using the vaccine but regulators in individual countries opted to be cautious, waiting for investigations to take place. But why?

Tim Harford explores the risks of blood clots and weighing up whether it was necessary to suspend using the vaccine.

The truth about obesity and Covid 19 Mar 13, 2021

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A widely reported study claims that 90% of Covid 19 deaths across the world happened in countries with high obesity rates. While an individual’s risk of death is increased by having a high Body Mass Index, the broader effect on a country’s death rate is not what it seems.

Sainthood and Cup draws Mar 06, 2021

Show notes

Tim Harford explores the chances of becoming a saint, inspired by a throw away comment by the detective on the TV drama ‘Death in Paradise.’

Plus, a listener has a question about the recent Europa League Draw for the final knockout round. He spotted that none of the teams face a rival from their own country. What were the chances of that happening?

Why are US Covid cases falling? Feb 27, 2021

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Cases of Covid 19 began to soar in the US in the autumn. By early January there were around 300,000 new cases a day. But since then the numbers have fallen steeply. What caused this dramatic drop? From herd immunity to the weather, Tim Harford explores some of the theories with Derek Thompson of The Atlantic magazine and Professor Jennifer Dowd, deputy director of the Lever Hume Centre for Demographic Science at the University of Oxford.

Covid 19 death count: which countries are faring worst? Feb 20, 2021

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Are different countries counting deaths from Covid 19 in the same way? Tim Harford finds out if we can trust international comparisons with the data available.

We discover Peru currently has the most excess deaths per capita over the course of the pandemic, while Belgium has the highest Covid death count per capita.

Tim speaks to Hannah Ritchie from Our World in Data and John Burn Murdoch, senior data visualisation journalist at the Financial Times.

Comparing death counts, Lock Down drinking and Long Covid Feb 17, 2021

Show notes

The UK was the first European country to surpass 100,000 deaths from Covid 19. The UK has one of the worst death rates. But can we trust the numbers? Many of our listeners have asked us to investigate. Long Covid is widely acknowledged as being a growing problem, but what are the numbers involved? Just how many people have long-term symptoms after their initial infection? There have been reports that we are drinking more in Lock Down. We examine the evidence. Dr Natalie MacDermott was one of the first guests invited on to More or Less to talk about the new coronavirus early last year. We revisit what she said then and what we know now. Plus, she tells of her own struggles with Long Covid.

How much Covid in the World? Feb 13, 2021

Show notes

If we brought all the virus particles of the Sars-CoV-2 virus from every human currently infected, how much would there be? This was a question posed by one of our listeners. We lined up two experts to try to work this out. YouTube maths nerd Matt Parker and Kit Yates, senior lecturer in mathematical biology at the University of Bath, UK give us their best estimates. One believes the particles would fit into a small can of coke, the other a spoonful.

Brexit exports, cladding and are 1 in 5 disabled? Feb 10, 2021

Show notes

Are exports to the EU from the UK down 68% since Brexit? This apocalyptic statistic is being widely reported, but does it really tell us what’s happening at Dover and Folkstone?

Ministers are tweeting reassuring numbers about flammable cladding on high rise buildings. We’re not so sure.

Is it really true that one in five people are disabled?

Plus, if you assembled all the coronavirus particles in the world into a pile - how big would it be?

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