Today I had a really wonderful meeting. Between a group of 3 from coporate marketing of my client company, there was so much knowledge about the 3G Wireless industry and the wireless industry as a whole. But the catch was that it was restricted just the branding and services offered by various operators in the field. So I was wondering at the end of the meeting that if I could spend sufficient time with all these people, would I become a domain expert? And more over, since its such a specialised area, it would more be like a sub-domain expert. If thats the case, what really does it mean when one refers to as domain expert? According to me, no one can practically have an understanding of any entire domain unless thats more like a niche and in which case, there wouldn't be a 'domain-expert'. Or unless the sub domains have become so fine-grained to call it a domain by itself!! Guess either I have to choose and bestow myself with the tag of domain-expert or be silent with the knowledge gained.