We see the world according to certain paradigms - broadly speaking philosophical or theoretical frameworks of any kind - ways of seeing our world and the things around us. Paradigm shifts originated within the scientific world, but the term has spilled over into many areas of our lives and refer to those moments where we thought one way about something and then, through some intervention or other, take on a completely new view.Take the picture below. What did you see first? Duck or Rabbit? How do you respond to someone who sees the Rabbit first? The Duck? Are we open to possible paradigm shifts in our lives or are we so busy protecting those we have (in some cases) unwittingly adopted? Malcolm Gladwell in his book Outliers looks at a major paradigm shift in personal computing: 'If you talk to veterans of Silicon Valley, they'll tell you that the most important date in the history of the personal computer revolution was January 1975. That was when the magazine Popular Mechanics ran a cover story on an extraordinary machine called the Altair 8800. The Altair cost $397. It was a do-it-yourself contraption that you could assemble at home......For years, every hacker and electronics whiz had dreamt of the day when a computer would come along that was small and expensive enough for an ordinary person to use and own. That day had finally arrived.....If you're too old in 1975, then you'd already have a job at IBM out of college, and once people started at IBM, they had a real hard time making the transition to the new world....Why screw around with these little pathetic computers? If you were more than a few years out of college in 1975, then you belonged to the old paradigm. You had just bought a house. You're married. A baby is on the way. You're in no position to give up a good job and pension for some pie-in-the-sky $397 computer kit.' 3 men were at the perfect age, time and place to take on the new paradigm in 1975 - Bill Gates, Paul Allen (Founders of Microsoft) and Steve Jobs (cofounder of Apple) - all born between 1953 and 1955. Fascinating read if you get the chance.