Oculus chief’s vision blurs virtual technology and real life as he targets billion users
Interview Tech, p6&7
Marks & Spencer’s troubles have deepened with a slowdown in the food business that has driven growth in recent years. Customers in the UK are being cautious in their spending, the company said. Its shares fell as much as 3.6pc, reversing early gains in London. M&S has drafted in Paddington Bear for its Christmas advertising campaign, above, as it targets the family market.