Again, we're not seeing the whole picture. Taking a still longer view gives us what I call the ``Oh Shit'' perspective.
Nothing in this world is static and nothing, regardless of maturity, lives forever. When a technology, or market, or species ceases to grow and develop, it's the strongest possible indication that it's become a dead end--its hand is played out--that decline and replacement are only a matter of time.
To understand why, we have to take an even longer perspective.