If there is one thing the past 20 years have told us, it's that nothing persists but the thing you actually own.
- Medium rised but now partially closes it's platform
- Facebook started as the universal platform for everyone on the internet but ultimately failed to become an open platform for discussion
- MySpace once almost *was* the internet, until it was replaced by shinier new things (facebook, ...)
- And today the end of tumblr and many more foreseeable...