I’m surprised Elon hasn’t discovered the value of disappearing messages yet. 此（譯注：用間）兵之要，三軍之所恃而動也 (“Secret operations are essential in war; upon them the army

I’m surprised Elon hasn’t discovered the value of disappearing messages yet. 此（譯注：用間）兵之要，三軍之所恃而動也 (“Secret operations are essential in war; upon them the army relies to make its every move.”)