The global investment spree in artificial intelligence is producing some remarkable numbers and a projected $3tn £2.3tn spend on datacentres is one of them. These vast warehouses are the central nervous system of AI tools such as OpenAIs ChatGPT and Googles Veo 3, underpinning the training and operation of a technology into which investors have poured vast sums of money. Despite concerns that the AI boom could be a bubble waiting to burst, there are few signs of it at the moment. The Silicon...