Artificial intelligence offers immense promise but currently poses significant risks. It's driving a potential financial bubble in tech stocks, and the resulting wealth effect is powering consumer spending, especially at the high end. This creates a precarious situation where a market correction could have major macroeconomic impacts.

The resilience of consumer spending, despite weak employment growth, is driven by affluent consumers liquidating assets or drawing down cash. This balance sheet-driven consumption explains why traditional income-based models (like savings rates) are failing to predict a slowdown.

A significant gap exists between weak real income growth (~1%) and stronger real consumption (~2%). This suggests consumers are funding their spending through the wealth effect of a rising stock market, creating a fragile dependency on equity performance.

Rising equity markets, driven by the AI narrative, create a wealth effect that encourages affluent consumers to spend by drawing down savings. This spending supports the broader economy, which reinforces the positive market sentiment, creating a continuous feedback loop.

Beneath the surface of AI-driven growth, the US consumer is strained. Real income growth is flat, and spending is sustained only by a rapidly falling savings rate, now at pre-2008 crisis lows. This indicates the economy is more fragile than headlines suggest and vulnerable to a spending pullback.

The top 10% of earners, who drive 50% of consumer spending, can slash discretionary purchases overnight based on stock market fluctuations. This makes the economy more volatile than one supported by the stable, non-discretionary spending of the middle class, creating systemic fragility.

The economy is now driven by high-income earners whose spending fluctuates with the stock market. Unlike historical recessions, a significant market downturn is now a prerequisite for a broader economic recession, as equities must fall to curtail spending from this key demographic.

The personal saving rate has dropped dramatically to 3.5%, fueled by the stock market wealth effect. This is historically low and below equilibrium, suggesting that consumers cannot continue to fuel economic growth by saving less and the current spending pace is unsustainable.

Aggregate US consumer strength is misleadingly propped up by the top 40% of upper-income households, whose spending is buoyed by appreciating assets. This masks weaknesses among lower- and middle-income groups who are more affected by inflation, creating a narrowly driven economic expansion.