The Sunday Times’ tech correspondent Danny Fortson brings on Benedict Evans, partner at Andreessen Horowitz, to answer five big questions about tech: One, How long will it be before self-driving cars take over (1:55), Two, Will cryptocurrencies replace the dollar, pound and other fiat currencies (8:40),Three, Is Big Tech too big (17:05), Four, How worried should we be about the march of the machines (28:15), Five, What is the next revolutionary technology (35:20).