Architecture is not about space but about time.
What connects architecture and music is that neither one is really an object. It's more like an ambience, a surrounding and a context. You can do other things while you're listening to music and of course, you can do other things while you're in the middle of architecture. The notion of multi-attention seems to me like it's the keynote to the beginning of the 21st century.
Sustainability has become a religion in architecture - not that there's anything wrong with it - but I think it has to work both ways. Everyone thinks architecture has to be subservient to sustainability, but what if we thought in the other direction, like, what can sustainability do to make architecture more exciting?