What a fun article:
iPod sales sales have slowed considerably. They were up only 8% in the quarter. to 10,644,000.
This use of statistics serves as a wonderful idiot detector. The idea seems to be that if any derivative of a function is negative at any time, the entire function will soon be zero. In other words, any function that grows more slowly than e^x is doomed. But, as I know I’ve seen somewhere, probably applied to the housing market:
Anyone who believes in continued exponential growth in a closed system does not understand the problem.
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tmack | 27-May-08 at 6:50 pm | Permalink
> The idea seems to be that if any derivative of a function is negative
> at any time, the entire function will soon be zero. In other words,
> any function that grows more slowly than e^x is doomed.
Those two statements are not equivalent.