As this book explains, the Internet was built without any way of knowing who you are connecting to. This is now universally recognized as an architectural flaw. It is as nonsensical as a house without a door or plumbing. Attempts to compensate for flaws in architecture usually turn out to be messy, expensive, and unsatisfying. This has certainly been the case with the missing identity layer of the Internet.

However, while it is fairly easy to get people to recognize the flaws in the present system, getting the whole world to agree on a new Internet identity architecture is a daunting task. It means a lot of people with different backgrounds have to think hard about some pretty deep issues and breach many of the usual divides. It also ...

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