I remember listening to a pitch about Xanadu around 2010 or 2011. One of the major, major issues that the presenter (don't remember the name) had is that featu

I remember listening to a pitch about Xanadu around 2010 or 2011. One of the major, major issues that the presenter (don't remember the name) had is that features like two-way linking only work if the entire system is centralized. Yet, to "replace" the world-wide-web, the system has to be decentralized, or otherwise encumbered with a lot of the problems of blockchain. (IE, blockchain protocols require significantly more politics to update than HTTP.) I very quickly stopped taking the presenter seriously; and I think other people had a similar sentiment.