Elon Musk says retirement savings 'won't matter' in 20 years. We asked 7 personal finance and AI gurus what they think. Business InsiderElon Musk says saving for retirement is irrelevant because AI is going to create a world of abundance: ‘It won't matter' Yahoo FinanceThis is why Elon Musk thinks you shouldn't save for retirement Fast CompanyMusk says AI will lead to universal abundance and saving for retirement will be irrelevant Seeking Alpha