This sentence is exactly the message Hawkeye entrusted Late Calamity to leave with Brain in a Tank.
"You" refers to the powers behind Yang Fan, and "truth" is the truth about the entire world always shrouded in the haze of war. Although it's impossible to inform the world of the behind-the-scenes manipulator Hell's Movie, this is a world full of "disasters," yet it can be told to all people, whether they are rich or hobos, old or children, they can know and have the right to know, not only because they might be sacrificed at any time, but also because today could very well be the last day of their lives.
What will people do after knowing the truth? Will they choose to indulge their inner desires and do what they've always wanted to do? Or will they maintain their original lifestyle and wait for the end of the world with their families? All these no longer matter.
