Tesla stock closed down 14.52% and Alphabet closed down 6.89% after they signaled increased AI spending, amid worries about the mounting costs of the AI boom (Arjun Kharpal/CNBC) https://www.cnbc.com/2026/07/23/tesla-tsla-alphabet-googl-stock-today.html http://www.techmeme.com/260723/p45#a260723p45