Clearly, leaving your retirement nest egg 100% in cash is a spectacularly bad idea. Similarly with super-risky assets like crypto.

On the other hand, using a combination of low-cost mutual funds or ETFs diversified across asset classes (see the next couple of articles I just published in the past hour) should work reasonably well.

Beyond that, using a dynamic rather than fixed drawing approach (I'll cover that in the next couple of articles) should work even better.