A protocol is a set of rules that a group of people have agreed on to make it easier to talk to each other. I shut up when you talk and listen to what you say. I speak again when you have finished and then it’s your turn to listen. That’s a simple example of a protocol.
IP is more rules than that but it allows computers to talk to each other without having to exchange contract information first, like people do with phone numbers.
A protocol is a set of rules that a group of people have agreed on to make it easier to talk to each other. I shut up when you talk and listen to what you say. I speak again when you have finished and then it’s your turn to listen. That’s a simple example of a protocol.
IP is more rules than that but it allows computers to talk to each other without having to exchange contract information first, like people do with phone numbers.
Let that sink in before you tackle Activity Pub.