# Monday Mining: What Made You Successful Won&#8217;t Anymore — Still True
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## Article Content
“What made you successful in the last 10 years will not make you successful in the next 10. Given that, what are you going to change in your thinking to adjust to this harsh reality?” - Futurist Jim Carroll From the vault: October 14, 2016, I wrote this one. This was during the early days of my Daily Inspiration series which ran for 10 years. Back then, all I was sharing was the quote itself - I didn't yet have any written context to it. If I had, I probably would have said something like: "There is so much new knowledge emerging, and such profound career change, that what you did in the past doesn't matter for your future. Reinvention will be critical to your success." In the years that followed, I went on to cover - extensively - the issues of career and skills reinvention and transformation, culminating in my book Now What? Reinvention and the Role of Optimism in Finding Your New Future? Another ten-year clock hitting zero this year — and this one aged better than I expected. In 2016 I was talking about a full decade of skill turnover. In 2026, the decade has compressed into a much shorter window: the half-life of a professional skill has collapsed to just 2.5 to 5 years, down from 10 to 15 years back in the 1980s. 53% of organizations now say critical skills in their industry become obsolete within three years or less. I said 10 years. Reality is now running that same erosion on a 3-to-5-year clock. If anything, I undersold the urgency. Then vs. now: Nailed it, and the clock sped up since I said it. What made you successful even three years ago may already be working against you.

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Source: https://jimcarroll.com/2026/08/mondayminingwhat-made-you-successful-wont-anymore-still-true/