The real answer to this timeworn question of course is one.
It took just one Gandhi to set off a wave of enlightenment across the
planet; and one maverick scientist by the name of Nikola Tesla to
invent the electric age, prompting us to screw in a never ending
supply of lightbulbs. On the other hand, the will of just one zealous
despot, Adolf Hitler, almost succeeded in throwing us back into the
It only takes one mutant cell to change the course of human evolution.
And every time one internet user shares a good idea, it may
exponentially reach the minds of two, four, or perhaps a million
people who come across it on their non-linear path.
It is often said that humans are reluctant to change, yet in less than
20,000 years we have left our mark on every inch of the planet and
We owe the rapid rise of human civilization (and our ability to screw
in a light bulb) to a simple evolutionary modification of our digital
extremities known as the opposable thumb.
Now we have the mouse, which at this very moment puts you just one
click away from playing a role in the future of everything.