Hedge fund manager 
The Greenlight Capital founder said the trillion-dollar build-out by companies overall, such as Apple Inc., Meta Platforms Inc. and OpenAI is so extreme that the eventual returns are highly uncertain. While he expects AI will ultimately surpass today’s bullish forecasts, he questioned whether “spending a trillion dollars a year or 500 billion a year” will deliver good outcomes for the firms making those investments.
“The numbers that are being thrown ...


