Retirement: Why waiting for 65 is a big mistake & What is a good Monte Carlo success number?

These two videos caught my eye so I'm sharing them.

I appear to have waited to retire until age 65. I didn't really give retirement any serious thought until I was 60. With hindsight, that was too late. I wish I'd started looking at my situation 10 years earlier. Would I have retired earlier? I'm not sure. We each have different home situations that might cause us to work longer, but it would be better, I think, to do it with a good plan.

The 3 Stages of Retirement | Why Waiting for 65 is a Big Mistake https://www.youtube.com/watch?v=xCwwFWpvC4k

If you've used a tool to model your retirement financial situation or have a financial advisor who's done this for you, you can't help but wonder about the resulting "odds of success" number. A financial advisor sees this number all the time and probably has a good feel for what it means, but each of us only sees our own number and have less experience understanding what it means. Is higher always better? This video talks about that number.

What is a Good Monte Carlo Success Number? Can it be too high? Can I retire now? https://www.youtube.com/watch?v=MyKGi6YyuL4