These questions reflect what, in 2004, FC called the Pro-Am Revolution.

“From astronomy to computing, networks of amateurs are displacing the pros and spawning some of the greatest innovations.”

“These far-flung developments [rap, Linux, The Sims] have all been driven by Pro-Ams — committed, networked amateurs working to professional standards. Pro-Am workers, their networks and movements, will help reshape society in the next two decades.”

http://www.fastcompany.com/magazine/87/open_essay.html

Ubiquitous connectivity has fueled this change, and fields of expertise will continue to be questioned as we can “just Google” anything that interests us.

Cheers;
Harold
– currently with a crashed web server 🙁