I've never heard of Identity 2.0 before I listened to prof. Lessig's presentation. According to him, the Internet comprises of four basic layers:
- physical (wires)
- logical (that allows it to be read in the Internet way)
- application (browsers, operating system) and
- content.
To enhance privacy (an ability to control how people learn about us) we need to develop and introduce an identity layer which he calls Identity 2.0. It'll help people to control how others get data about them. People themselves will decide if a link to their identity can be drawn by others and selectively reveal their information. Such a technology could help to fight defamation, gossip and lies that nowadays can be easily spread on the Internet.
He also advocates the idea of decaying links - links to your data that would disappear from the virtual space after some time. It'll get rid of not relevant information that the Internet is full of now.
Prof. Lessig's presentation touched on other interesting topics you can read about in Andy's blog here.
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