马斯克的四大预言，未来钱的概念会消失？

Group 1 - Musk's predictions have gained attention due to their increasing accuracy over time, with past claims now being realized, such as rocket recovery and brain-machine interfaces [1][2][4][5] - The automotive industry is undergoing a significant transformation, with traditional car manufacturers shifting towards electric vehicles, validating Musk's earlier assertions [7][8] - Musk's future predictions indicate substantial investments in research and development in various fields, which could present new opportunities for investors [9][10] Group 2 - Musk predicts that in the next 5-6 years, apps will disappear, and smartphones will evolve into AI terminals that understand user commands without needing to open specific applications [12][13][20] - The concept of money may gradually fade, with energy becoming the ultimate currency as AI and robots enhance productivity, potentially leading to a society where basic needs are met without monetary exchange [33][39][41] - The future of work will become optional, allowing individuals to focus on deeper existential questions as material needs are satisfied, which aligns with Musk's vision for humanity's long-term survival [50][53][56]