The future rarely warns you exactly which skill it will ask for.

You cannot predict which capability the future will ask you for, only that it will ask for something. This is why narrow preparation aimed at one forecast tends to disappoint, and why general strength, adaptability, and a habit of learning quickly hold their value. The uncertainty is not a reason to stop preparing; it is a reason to prepare broadly.

Instead of betting everything on one scenario, ask which capacities would help across many of them: clear thinking, physical health, some savings, the ability to learn something new without panic. Build those steadily. When the specific demand arrives, you will be closer to it than someone who guessed and guessed wrong.