We all know the old definition of insanity: doing the same thing over and over and expecting different results.

But in a changing world, is that definition still accurate? I don't think so. Most of us are working from a script we didn't write, with expectations we rarely question. That worked well enough when the currents of change were placid. They're not anymore.

My latest piece is about that gap: why the ground feels like it's shifting under us, and what kind of mindset actually meets the moment.

Experience is not only what we learned—it's how we felt about the effort.

When I asked my wife to build the website for my new book, I watched the blood drain from her face.

She's built them before. That was the problem. Experience, oddly enough, had made her a bit of a luddite.

What happened next surprised us both—and changed how I think about experience itself.

Yesterday's experience is not today's experience.