Technology tastes change quickly. Things can be hot today, gone tomorrow.
Anybody remember Pointcast? Once the software app of the moment, it was quickly tossed into the rubbish bin of technology history.
That brings us to Twitter, one of the apps du jour. It's amazing how swiftly it has penetrated into the public consciousness. We now see the tweets of public figures scrolling across TV screens during International sporting events.
Founded in 2006, Twitter has gone public and amassed a $31 billion market cap in less than 10 years.
But will we still tweet 10 years from now? After all, it's just a text message. There's not really any rocket science here. And it's been proven that new social apps such as Instagram and WhatsApp can swoop in and grab the fickle-fancy of teens in a heartbeat.
A decade is an eon in tech terms. When you think of Moore's Law, whereby computer speed and capacity doubles every two years, it makes 10-year old technology look lame.
No app is safe in the zeitgeist of mobile culture.