Horace Dediu, speaking to The Next Web:

TNW: There has been much talk recently on the ‘decline’ of Apple, as reflected in its stock price. What’s your take on this ‘decline’ and the suggestions that Tim Cook should be fired?

Dediu: I’ve written about the perception of decline several times. The quick answer is that as Apple has risen, the number of people who have taken it upon themselves to give commentary on how Apple should improve itself has increased. If the increase in commentary is in proportion to Apple’s sales then it has risen ‘exponentially’.