What is an IQ map and can we trust them?

We investigate maps that suggest extremely low average IQs in developing countries

• 8 mins

How did lockdown impact children?

Five years on, Tim Harford looks at the data on the effect of lockdown

• 41 mins

Why are more people claiming disability benefits?

Plus, UK vs Russia on free speech and the collapse of the Labour Force Survey

• 28 mins

What are the chances of an asteroid hitting earth in 2032?

Why the likelihood of planetary impact changed as asteroid 2024 YR4 approached.

• 8 mins

Could a 2% wealth tax raise £24bn?

Plus did trillions disappear from UK pensions? Why does the UK have a lot of old housing?

• 28 mins

What’s Trump’s problem with Canada?

Does the US subsidise Canada $200 billion a year and why does Trump call them nasty?

• 8 mins

Is one in four people in the UK disabled?

Plus, what has Canada done to Donald Trump? Is Rachel Reeves chasing the model?

• 26 mins

Trump tariffs: All about the deficits

Explaining the maths and economics of the US ‘Liberation Day’ tariffs

• 8 mins

The mistake in Trump’s tariff formula

Plus, counting bobbies, freezing tax and electrocuting redheads

• 29 mins

How much is a human life worth?

The Price of Life author Jenny Kleeman on the cost of making and taking a life

• 8 mins

The pioneers of proof

Professor Adam Kucharski on his new book, Proof: The Uncertain Science of Certainty

• 8 mins

Are 80% of women really only attracted to 20% of men?

Dispelling an incel myth that featured in the Netflix drama Adolescence

• 8 mins

Donald Trump: 100 days fact-check

Working out the reality behind President Trump’s claims on immigration, fentanyl and eggs

• 9 mins

Bonus episode: The Autism Curve

The first episode of a new BBC series investigating the steep rise in autism diagnoses.

• 15 mins

Warren Buffett’s brilliant bets

How retiring Berkshire Hathaway boss Warren Buffett made his money and made a point

• 8 mins

How dead is the internet?

We investigate the claim that bots make up 50% of internet traffic

• 8 mins

Is the UN underestimating the global fall in fertility?

How one graph shows the conservative side of the United Nations’ population estimates

• 8 mins

Factchecking the Trump administration’s Autism claims

Why has the rate of autism risen so dramatically in the last 30 years?

• 9 mins

Does the average American have fewer than three friends?

Plus, skilled migrants, preventing Alzheimer’s and Robert Prevost on God and probability

• 28 mins

Is the world’s population being miscounted?

Investigating if the global population is really 2 billion higher than previously thought

• 8 mins

How do you make something 10-times more lethal?

Plus, the Sycamore Gap tree, pensioner-worker ratios and yoga v fishers

• 28 mins

Could you be hit by a falling satellite?

Investigating if 100,000 satellites could be orbiting earth in five years’ time

• 9 mins