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- US stocks have surged too high and are now in a "death zone", Morgan Stanley's Mike Wilson said.
- "Investors have followed stock prices to dizzying heights once again," he warned in a recent note.
- Wilson has predicted the S&P 500 could crash 26% to 3,000 points within months.
US stocks have soared to unsustainable highs – but investors are behaving similarly to climbers who blindly push on towards the top of Mount Everest without properly considering the risks, according to Morgan Stanley's Mike Wilson.