Record investments by US tech giants are no longer captivating markets, as doubts arise about their ability to translate spending into profits. The escalating cost of debt and a sixfold increase in the price of memory chips by 2025 are key factors contributing to this shift in sentiment. These rising expenses are complicating the financial equation for these companies. Investors are becoming wary of continued high spending without guaranteed returns. This trend suggests a growing disconnect between investment levels and market expectations within the American tech sector. The situation highlights a potential turning point as profitability becomes increasingly challenging to achieve. The future success of these investments is now uncertain.