What is the distinction between a paper wallet, cold storage, and off-line storage?
Perhaps I'm naively lumping them together.
To my understanding, a wallet is:
A cryptocurrency wallet is a device,1 physical medium,2 program or a service which stores the public and/or private keys.3
the distinction being only where the keys above are stored:
on a device, on a physical medium, or in a program. Else a wallet is a wallet is wallet? Within the context of bitcoin only.
Perhaps I'm looking for a simple, or even simplistic, answer to a complex question.