I'm fascinated by the discussions around creativity and remote work both on this forum and elsewhere.

What is the fraction of open source code [by which I mean community-maintained and built rather than through a company] that ends up being collaborated on remotely? Aren't projects like Linux and others largely managed through remote means (although there are conferences and such from time to time)? Do we really have a strong case that these projects suffer due to the lack of a single office for people to gather everyday? I'm sure my questions can be split into sub-cases and exceptions.