Imagine that the price of automobiles drops exponentially. You'd never even consider a Rolls as the family sedan. But say the Rolls drops in price by a factor of two each year. In the fourth year, the kids take one with them to college. Now, instead of renting a car on vacation, you buy a Rolls at the airport and leave it with the redcap in lieu of a tip on your return.
Exponentials start slowly and remain disarmingly out of sight.
Yet they build strength relentlessly until they grow too large to ignore. By then, whole industries have changed and whole cultures have fallen. The cost and intelligence of computers follows an exponential curve, having improved by a factor of two every 30 months over the last century. That's a factor of 1 trillion every 100 years, and there is no sign the pace will slow appreciably for another century. And by 2088, that box of silicon, wires, and plastic will place humans on the endangered species list.