David Rosenberg: The AI "Mania" Is More Extreme Than 1999

The current economic landscape is defined by a bifurcated market and the risks of a consumer-led recession, as the AI-driven "mania" creates extreme concentration that masks underlying fragility. While inflation remains a concern, it is largely a supply-side phenomenon driven by energy shocks rather than systemic demand, making the Federal Reserve’s aggressive tightening a blunt tool that threatens to destabilize the broader economy. With the S&P 500’s breadth at historic lows and household equity exposure at record highs, the market mirrors the unsustainable dynamics of the late 1990s. David Rosenberg, founder of Rosenberg Research, argues that the equity wealth effect is currently the primary support for consumer spending, leaving the economy vulnerable to a significant correction. His latest book, *Bear in the Bull Ring*, offers a framework for independent thinking and navigating these cyclical extremes by prioritizing conviction over herd mentality.