It’s starting to feel like this might be a real tipping point week for the global AI revolution. For all the hype and the huge share price jumps, there is a growing sense that the pinpricks in the bubble are getting bigger.Around the world, investors have spent the weekend fretting about whether the hyperscalers such as Microsoft, Meta Platforms, Amazon, Alphabet and Oracle can really afford to keep spending trillions of dollars to meet the growing costs of the AI infrastructure boom, while sustainable, meaningful returns remain a distant hope.Subscribe to gift this articleGift 5 articles to anyone you choose each month when you subscribe.Subscribe nowAlready a subscriber? Fetching latest articles