If sending a message is the only requirement, email fits the bill and has worked for half a century. If we’re being real, the reason Signal “can’t do what Telegram does” is because Telegram doesn’t even attempt to do what Signal does. Signal is tackling a much bigger problem.
Telegram is basically not even encrypted. They are not offering the same service.
For the purpose of “shoot a message, go offline and be certain it’s sent” it’s the same service.
If sending a message is the only requirement, email fits the bill and has worked for half a century. If we’re being real, the reason Signal “can’t do what Telegram does” is because Telegram doesn’t even attempt to do what Signal does. Signal is tackling a much bigger problem.