Open access

By definition, any system that is practically or logically closed will be at least somewhat centralized. A system that is closed is automatically centralized to the pre-existing actors. As with all other aspects of decentralized systems, this is not a binary yes/no but more of a sliding scale of possibility.

The early internet was seen as revolutionary in part because of its open access nature and the ability for anyone (with a computer, time, and access) to get online and begin trading information. Similarly, blockchain technologies have so far been open for innovation and access.