The key question: how do you replicate presence?  Mark says Meta wants to make the most human thing possible: visual presence, spatial audio, temperature, olfactory system, touch, etc.

If you think about the way Spotify gave us access to the back catalogue of music, VR is going to give us access to the back catalogue of objects that we can look at or that we can interact with — with other people, anywhere that we go. Which is something that’s going to be different experience than the kind of 2D video chat that we have today.

The goal of the metaverse is not to build technology for people to interact with; but rather, build technology for people to interact with each otherSpatial audio and eye contact technology are just two features to drastically improve on current video meeting technology, for exampleEstablishing a presence is the most difficult problem