Only one of these two countries is risking blowing up its entire economy on speculation.

Gary Marcus compares two countries' economic risk-taking, suggesting one is engaging in dangerous speculation while the other is not. The post likely discusses contrasting approaches to emerging technologies, cryptocurrencies, or financial markets and their potential economic consequences. Without access to the full thread, the specific countries and nature of the speculation referenced are unclear from the title alone.

Source: Gary Marcus (X) | 2026-06-22