For what it’s worth, the thing I find most exciting about Spaces is that they provide a decentralised hierarchical namespace with decentralised access controls for every room (ie pubsub topic) in Matrix. So it’s like we’ve sprouted an openly federated global hierarchical filing system for freeform realtime data streams of all flavours - where people can go crazy defining their own trees, applying their own curation ideals; perhaps we’ll even see a single global tree emerge (although the implementation may need some more optimisation first).<p>It’s like a multiplayer hybrid of DMOZ and USENET and the read/write Web all rolled together. Once we start storing more interesting data streams than instant messages in it (eg forums, email, bulletin boards, DOMs, scene graphs, ticker data, IOT sensor data...) it <i>really</i> gets interesting :)<p>Plus you can use it to organise your own rooms and have Discord style communities or Slack style workspaces, but that’s the boring obvious bit ;)<p>Edit: for a user-facing rather than developer-facing overview, <a href="https://element.io/blog/spaces-the-next-frontier/" rel="nofollow">https://element.io/blog/spaces-the-next-frontier/</a> has more details.