othing cheers up a tech columnist more than the sight of $600bn being wiped off the market cap of an overvalued tech giant in a single day . And yet last Monday thats what happened to Nvidia, the leading maker of electronic picks and shovels for the AI gold rush. It was the biggest one day slump for any company in history, and it was not alone – shares of companies in semiconductor, power and infrastructure industries exposed to AI collectively shed more than $1tn in value on the same day. The...
