Rank #1: Brexit and the currency speculators
Both the British Prime Minister's sister Rachel Johnson, and the former Conservative finance minister Philip Hammond, have publicly voiced concerns in recent day that Boris Johnson is backed by financiers speculating on a sharp fall in the pound following a possible no-deal Brexit on 31 October.
Manuela Saragosa asks how credible are such claims? How are the markets positioned for Brexit? And is there any way of even knowing who is "shorting" the pound, ready to profit from an unexpected fall in its value?
The programme includes interviews with David Riley, chief investment strategist at Bluebay Asset Management, and with Jane Foley, head of currency strategy at Rabobank. Plus the BBC's Edwin Lane learns how to play the foreign exchange markets from Piers Curran of Amplify Trading.
(Picture: A woman looks at a chart showing the drop in the pound against the dollar after the UK vote to leave the EU in 2016; Credit: Daniel Sorabji/AFP/Getty Images)
Rank #2: Doing Business amid Brexit Chaos
(Picture: A container ship at the port of Felixstowe, UK; Credit: Getty Images)
Rank #3: WeWork and the cult of the CEO
(Photo: Adam Neumann, Credit: Getty Images)
Rank #4: Looking Back at Lehmans
(Photo: Lehman Brothers sign being carried to an auction in London in 2010, Credit: Getty Images)
Rank #5: What's Up with Whatsapp?
Ed Butler visits Kampala where he discovers how popular the app is, both for socialising and for business. Meanwhile Rahul Tandon reports from Kolkata on the unnervingly fast spread of the app across India. Plus Samantha Bradshaw of the Oxford Internet Institute explains what makes Whatsapp particularly well suited for lower income countries.
(Picture: Ugandan woman with painted nails using a cell phone; Credit: Godong/UIG via Getty Images)
Rank #6: The Class of 2008
Kim Gittleson is one of them, and she goes in search of three others who - like her - found their career prospects straight out of university blighted by a disaster not of their making. Are they angry? Or did they actually learn some useful life lessons unique to their generation?
And how long a shadow has the grim milestone in financial history cast over their financial wellbeing and their ability to have families? Professor of sociology Kenneth Johnson of the University of New Hampshire and Lowell Ricketts of the St Louis Federal Reserve provide some of the answers.
(Picture: Students at a George Washington University graduation ceremonies in 2008. Credit: The Washington Post/Getty Images)
Rank #7: Remembering Lehman
Lynn Gray was employed within the commercial property division in New York, while Scott Freidheim was Lehman's chief administrative officer and on the bank's executive committee. Plus the mess at the London Clearing House is retold by two employees who had to resolve some 70,000 outstanding trades that Lehman still had open as it went under.
(Picture: An employee of Lehman Brothers carries a box out of the company's headquarters building on September 15, 2008 in New York City; Credit: Chris Hondros/Getty Images)
Rank #8: Climate Action: Should we plant more trees?
(Photo: A tree in a deforested area of the Amazon rainforest, Credit: Getty Images)
Rank #9: Billion-Dollar Eels
(Photo: A fisherman holds glass eels fished in France, Credit: Getty Images)
Rank #10: Brexit: Oil, fish and bargaining chips
Katie Prescott speaks to local businesspeople in both industries, who are increasingly anxious at the complete lack of certainty about what will happen when the UK does eventually leave - albeit that the date of departure has now been postponed by a few more weeks beyond 29 March.
How will European fishing quotas and access to British waters be decided post Brexit? And what will happen to Aberdeen's oil production, particularly as the flow of fossil fuels from under the North Sea begins to run dry? Aberdeen is the most vulnerable city in the UK to Brexit, according to Andrew Carter of research group, the Centre for Cities.
Producer: Sarah Treanor
(Picture: Fish at the Aberdeen fish market; Credit: BBC)
Rank #11: The listening device in your pocket
Manuela Saragosa hears from the BBC's own technology correspondent Zoe Kleinman about a creepy experience she had when her phone appeared to listen in on a conversation with her mother, and how it led her to discover how easy it is to hack someone's microphone and spy on them.
That's exactly what Dutch documentary film maker Anthony van der Meer did, when he purposely let his phone get stolen so he could use it secretly to record the thief. Cyber-security expert Lisa Forte says these stories may be the tip of the iceberg, with everyone from governments to big tech firms to hackers and cyber-criminals potentially listening in on our private conversations.
(Picture: Outline of a mobile phone visible in the back pocket of a woman's jeans; Credit: Yuri Arcurs/Getty Images)
Rank #12: Disney goes to war with Netflix
We hear from Connie Guglielmo, editor in chief of CNET News; Piya Sinha-Roy, senior writer Entertainment Weekly; Franklin Leonard, film executive who founded the Black List, a networking platform for screenwriters and film and TV professionals and Luke Bouma, founder of Cord Cutters News
PHOTO: Disney sign, COPYRIGHT: Getty Images
Rank #13: Death of the Dollar?
But what difference will they actually make? Ed Butler hears from Professor Jeffrey Sachs of Columbia University, an outspoken policy advocate who thinks Trump's America First policies are endangering the very status of the dollar as the world's chosen reserve currency.
And to explain how a reserve currency works, Ed hears from Barry Eichengreen, a well-known currency expert and professor of economics at Berkeley in California. And the programme considers whether China's renminbi, or the euro, could ever take over from the mighty dollar.
(Picture: An Iranian protester burns a dollar banknote; Credit: Majid Saeedi/Getty Images)
Rank #14: Vaping: A New Addiction?
(Photo: Vaper in an e-cigarette store in California, Credit: Getty Images)
Rank #15: Peak Smartphone
Manuela Saragosa asks whether Apple's recent disappointing earnings are less to do with China's slowing economy - as the company claims - and more the fact that the market for iPhones has become saturated. With few major tech improvements on the horizon, is the smartphone about to become just another mass-produced, low-margin product?
The programme features interviews with phone industry analyst Ben Wood of CCS Insight, management professor Yves Doz of Insead in Paris, and Barry C Lynn of the Open Markets Institute thank tank in Washington DC.
(Picture: Group of people using smartphones outdoors; Credit: ViewApart/Getty Images)
Rank #16: A basic income for all?
Finland has just completed a two-year experiment in doing just that. Manuela Saragosa speaks to one of the grateful recipients of the pilot project, freelance journalist Tuomas Muraja. A similar approach has already been taken for many years by some charities in the developing world, as Joe Huston of the GiveDirectly explains.
So how does it work? Anthony Painter of the Royal Society of Arts in London says the financial security it provides allows people to be more creative and invest more in themselves. But Professor Ian Goldin of Oxford University is sceptical, saying there are more effective and affordable ways of helping those most in need.
(Picture: Money falling on people; Credit: stocknroll/Getty Images)
Rank #17: Are Things Getting Worse?
(Photo: A fishing cabin in Norway, Credit: Getty Images)
Rank #18: Is humankind on the verge of disaster?
But, David Edmonds meets academics who are putting Pinker's ideas to the test, concluding that with climate change and overpopulation, there is a 10% chance of humans not surviving the 21st Century.
(Photo: Activist at a climate change protest in Spain. Credit: Getty Images)
Rank #19: The Skin Business
(Photo: Woman with clay face mask, Credit: Getty Images)
Rank #20: How to Be Uncertain
What is the best way to weather all this uncertainty? In a programme first aired in 2016, Manuela Saragosa gets advice from David Tuckett, professor and director of the Centre for the Study of Decision-Making Uncertainty at University College London. Plus, David Spiegelhalter, Winton professor for the Public Understanding of Risk in the Statistical Laboratory, at the University of Cambridge, explains the difference between risk and uncertainty.
Lt Col Steven Gventer of the US Army tells us how soldiers are trained to deal with uncertainty in war. And, Will Borrell, founder and owner of Vestal Vodka and the owner of the Ladies & Gents bar in London, recalls how his customers reacted on the evening after the UK voted to leave the European Union.
(Picture: British Prime Minister Theresa May at the opening day of the G20 Summit in Argentina; Credit: Amilcar Orfali/Getty Images)