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Thanks. What is the problem with "people using a bunch of different devices, getting new phones, etc" in what I suggested? If I make a fresh install, then nex

Thanks. What is the problem with "people using a bunch of different devices, getting new phones, etc" in what I suggested? If I make a fresh install, then next time a friend messages me, it costs them a few seconds of delay in sending their first message because my client asks them to prove themself. I don't see the problem, but I imagine there are problems since smarter people than me are not doing it this way. I'd like to understand what I am missing here. I guess tweaking the difficulty to be actually difficult for a server farm, yet possible for an old device would be the main problem.

tptacek 5y ago
I'm not saying it isn't potentially workable, just that it's deceptively hard to deploy across the whole Signal userbase. A company like Slack or Discourse could build something like this easily, because it'd be mostly managed from the servers, which they control, working from a single source of truth about who's talking to who. Signal doesn't have that luxury.