I have said this before and I will surely say it again and likely again over time. Monte Carlo simulations are a terrific tool to challenge the survival robustness of a portfolio. What portfolio? Any you own or are likely to own.
There are now many free Monte Carlo simulators available on the Net. I especially like the one offered by Portfolio Visualizer. It provides many options, is comprehensive, is easy to use, and is fast. I have referenced it on earlier posts. Here is a Link to that useful financial tool:https://www.portfoliovisualizer.com/monte-carlo-simulation#analysisResults
If you want to explore the probability odds of a portfolio's survival, please give this tool an examination. I think you will be impressed with it. Give it a few test runs. You can use it to improve the survival odds of your portfolio. Enjoy and prosper.