Nvidia going 35x from $150B doesn’t answer the parent’s point. Matching Amazon’s returns from IPO would require a vastly bigger multiple from an already much higher starting valuation. “People underestimated Nvidia” isn’t an explanation for how Anthropic gets to a quadrillion dollars. It can be hugely successful without giving IPO investors Amazon-like returns.

Nvidia at $150B however wasn't representing anywhere near 5% of the US GDP.

If ANT lists at 5% of the US GDP and goes up 35x, it'd be worth 175% of the current US GDP.

Except in some hyperinflation scenario, I don't see how that makes any sense.