How to make sense of the latest tech surge

IN 2018 A new word entered Silicon Valley’s lexicon: the “techlash”, or the risk of a consumer and regulatory revolt against big tech. Today that threat seems empty. Even as regulators discuss new rules and activists fret about the right to privacy, the shares of the five biggest American tech firms have been on a jaw-dropping bull run over the past 12 months, rising by 52%. The increase in the firms’ combined value, of almost $2trn, is hard to get your head round: it is roughly equivalent to Germany’s entire stockmarket. Four of the five—Alphabet, Amazon, Apple and Microsoft—are each now worth over $1trn. (Facebook is worth a mere $620bn.) For all the talk of a techlash, fund managers in Boston, London and Singapore have shrugged and moved on. Their calculus is that nothing can stop these firms, which are destined to earn untold riches.