A wallet, but one to one coin exchange (atomic switch) can be made with someone. So human beings agree and send coins to trade for each different (computerized, of course, no longer based on mutual trust). Thus, you eliminate the acquisition / sale commissions received by the exchanges. When sending to other addresses, the transfer rate incident is of course cut off, this is approximately the generation of that coin.
Most importantly, at the same time as there has been a coin within…