On this week’s Spectator Out Loud: Fraser Nelson reflects on a historic week for The Spectator (1:15); David Whitehouse examines the toughest problem in mathematics (6:33); Imogen Yates reports on the booming health tech industry (13:54); Sean McGlynn reviews Dan Jones’s book Henry V: the astonishing rise of England’s greatest warrior king (20:24); and Ruari Clark provides his notes on rollies (26:18). 
 
Produced and presented by Patrick Gibbons.