When Does the Future Start?

Futurists like to say that the future starts in ten years. It is enough time for there to be dramatic, enough change that it's worth going to the future. We have a cultural mind sat of really understanding that things change in decades. And historically, you know, if weu're thinking about technological change, it took ten years to go from the first facebook user to a billion users. Ten years from bitcoin being an idea,. until it was already in the hundreds of billions of market capital ation.