[messaging] Encrypted Pulic Contact Discovery

[Ben Laurie]

On Fri, 4 Sep 2015 at 07:06 Trevor Perrin <trevp at trevp.net> wrote:

> Recipient selection is often done *before* composing a message.  For
> example:
>
>  * User starts an app
>  * User taps "Send new message"
>  * Contact discovery happens while user waits
>  * App displays the intersection of address book with registered users
>  * User selects recipient(s) from intersection list
>  * User composes message
>
> Contact discovery delay here is very noticeable.
>

Surely this only matters for contacts who have joined the service since you
last used the app?

The vast majority, you already know they're there.
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