It's hard to imagine how big a number $2 trillion is. That's about $2,000 billion, which is about 10% of the total US economy, which is estimated to have a GDP of $22.67 trillion by 2025.

Stock market losses of this magnitude are not usually caused by a single factor. I think there are a number of factors working together here - concerns about the cost of AI, new tariffs, and uncertainty about the global economy. All of these factors combined could cause such a big shock to the market.
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