This bellow from a SA commenter, on the question of why this market has this super powerful momentum despite all the headwinds: inflation, possible Fed tightening, debt, war, etc? What does "the market" see in the future, which makes it rally today?
... productivity gains [from the AI revolution - my note] are NOT merely theoretical. They are already showing up in hyperscaler efficiency, software automation, inference acceleration, code generation, customer service automation, drug discovery, chip design, logistics optimization, and enterprise workflow reduction. The market is not pricing “science fiction”; it is pricing the probability that AI meaningfully expands operating margins and economic output over the next decade, exactly as the internet, cloud, and mobile revolutions did before skeptics admitted they were real.
As for the national debt, yes, it matters. But debt becomes a true existential problem when growth stagnates while borrowing costs stay elevated. The single most effective antidote to excessive debt is higher nominal GDP driven by productivity, innovation, and corporate profitability. Ironically, if AI driven productivity accelerates even modestly, it improves the debt math substantially by expanding the denominator faster than pessimists assume. The market understands that. Doom narratives about debt have existed for 20+ years while U.S. equities, earnings, innovation leadership, and global capital dominance continued compounding anyway.