It is just because civilization is ever evolving, changing, and becoming more complicated, that experts find it so difficult to define it in explicit terms. ↗
As a medical doctor, it is my duty to evaluate the situation with as much data as I can gather and as much expertise as I have and as much experience as I have to determine whether or not the wish of the patient is medically justified. ↗
So let's say you're using XYZ product and you want to do something very sophisticated. You subscribe to this thing, you hit a button, and a CA expert pops up in video. ↗
As the president of Kosovo, I am more concerned about the current situation with the employment standing at around 70 % of the population, which is young, with great potential, speaking many foreign languages and having wide expertise. ↗
Despite a decade of criticism and budget cuts, the specialised UN agencies have far more expertise and hands-on experience than any other organisations in the world. ↗
Government experts have estimated that ANWR reserves would only provide enough oil for six months of U.S. oil consumption. In addition, the oil industry itself has estimated that it would take 10 years to bring this oil to the market. ↗
The thing that people associate with expertise, authoritativeness, kind of with a capital 'A,' don't correlate very well with who's actually good at making predictions. ↗