Spot gold prices climb to above $4,000 an ounce for the first time ever. Also on the show: Bloomberg has learned Elon Musk's xAI is raising more financing than planned, tapping backers including Nvidia; senior officials from the US, Qatar, Israel and other nations head to Egypt for Gaza talks with Hamas; tentative ceasefire has been reached in Kurdish-majority neighborhoods of the northern Syrian city of Aleppo; Kenya has converted its Chinese railway loans from dollars to yuan. Guests include: