A progressive disease is one that keeps getting worse.
Waiters in restaurants used to confine themselves to serving food and drinks to customers.
With the advent of digital cameras and mobile telephones with built-in cameras, things have changed. Waiters need to become competent photographers, able to use any kind of image capturing device handed to them by customers seated around a table. Not only do these carriers of food need to be able to operate whatever camera is handed to them, but also they need to be good at composing photos, and many of them are.
When I first began practising dentistry back in 1982, dentists confined their activities in the surgery to dental matters. When I retired 35 years later, not only did we dentists still deal with dental matters but also with general lifestyle behavioural assessment and advice.
Like the waiters, our additional workload is rarely appreciated or adequately rewarded.
Is this progress?