How will Trump's tariffs impact US-EU trade? Why is Nvidia launching cheaper AI chips for China? What caused the stock market volatility this week? How is AI reshaping major tech investments? Why did McDonald's close its CosMc's spin-off? What are the risks of relying on single stocks for retirement? How will the GOP budget bill affect the US deficit? Why are inflation and tariffs causing consumer price hikes? How did Bill Ackman’s bet affect the e-commerce sector?