The market value of the US's Magnificent Seven tech giants has surpassed the entire economic output of the EU, raising concerns about a potential tech bubble. Nvidia leads with a valuation of $4.3 trillion. While some argue this represents a structural shift in capitalism, others warn of investor sentiment stretching too far. Comparisons to the dot-com bubble suggest that while current valuations are high, they do not yet reach the extremes of the late 1990s. Teljes cikk (Euronews.com)