[joshuamorton]

> Signal can't work on an air gapped system

If this is the kind of thing you're resorting to claiming, we're well beyond reasonable forms of argument, and so I think it's safe to say that you agree that signal is better.

No communication protocol works on an air gapped system, and a modern Android or iOS device is going to be secure enough that you really don't need to use a special device for your messaging.

The riseup article doesn't mention anything about using a special device for your secure messaging, so I'm not sure why you think it's so important all of a sudden.