Asian markets are on edge due to concerns over AI spending, Federal Reserve uncertainty, and oil market shifts, according to the article. The nervousness stems from fears that massive investments in artificial intelligence may not yield immediate returns, while uncertainty about the Federal Reserve's next moves on interest rates adds to the caution. Additionally, shifts in oil prices are contributing to the market jitters, though the article does not specify the direction of those price changes or provide specific dates or figures for any of these factors.