AMERICA’S TECH giants make ungodly amounts of money. In 2021 the combined revenue of Alphabet, Amazon, Apple, Meta and Microsoft reached $1.4trn. These riches come from a wide and constantly expanding set of sources, from phones and pharmaceuticals to video-streaming and virtual assistants. Analysts expect the tech quintet’s combined sales to surpass $340bn in the first three months of 2022, around 7% more than in the same period last…