Japan's central bank has raised interest rates for the first time in 17 years, marking a significant shift in the country's monetary policy since 2007. Despite the rate hike, Japan's real interest rate remains deeply negative. This move has been interpreted as a clear signal that Japan is entering a new era where borrowing costs will increase, a change not seen in decades. The impact of this policy shift is expected to be significant, not just for Japan but also for US markets, as indicated by the stock symbol $SA. Additionally, there are concerns about the transparency of the Bank of Japan's decision-making process, as decisions that move billions of dollars often appear in the media before they are officially announced.