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.
It’s weird for Signal to not be able to do what Telegram does. Yes, for this particular purpose they are not different.
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.