Tech sell-off deepens, sending Wall Street toward its worst day since June

Investors are feeling jittery as the tech sector takes another dive, with the Nasdaq dropping around 3% and the S&P/TSX composite index in Canada falling by 2.3%. This downturn is raising serious questions about whether the massive investments in AI will eventually pay off in terms of profits and productivity. This sell-off is signaling broader concerns about the future returns on tech investments, making it a pivotal moment for market confidence and tech industry prospects.