Ballistics experts, people who look closely would tell you no.
Experts are those that look closer than everyone else. In the modern era, they are required for just about anything.
Could you imagine being the only one who understood how DNA works?
Could you imagine being the only one who understands how to program a computers?
Could you imagine being the only one who understands how to read?
Of course all those suppositions are far too general to allow for anyone to be the only one. However, as the world is expanding at the fastest rate ever, there is plenty of room to pick a specific niche and know more than anyone. And that’s where you want to be. The big boys, the ones who market to the masses are struggling. Connection due to technology is eroding the mass in subcultures.
Pick your favorite subculture, the one you self-identify with, and find a way to serve them something unique for them. That’s the way to make a living in the modern era.
Could you imagine being the only person who knows how to connect with engineers in Honolulu, Hawaii who are into car racing? Possibly. And there’s a market for that.