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by al_borland
365 days ago
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In the Alice and Bob scenario, what happens if Bob’s phone is off or doesn’t have a single when Alice sends the message? Does the message just get dropped? Does Alice’s phone keep trying forever to send the message until it gets a response back that Bob got it? How long does it try before giving up? What happens if Alice and Bob are far apart and the phones can’t directly talk, how does Alice in LA send a message to Bob in NY without a 3rd party to relay the message? If regular users don’t think about these things, it’s because they’ve never thought about these ideas at all. If they did, and they are able to think, they should come to the conclusion that a 3rd party is necessary in some form. |
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