Title Text:When my great grandfather designed the Titanic and it hit an iceberg and sank, he didn’t sit around moping. He took those lessons to his next job designing airships, and he made the Hindenburg completely iceberg-proof! Origin:https://xkcd.com/2350/ https://www.explainxkcd.com/wiki/index.php/2350:_Deer_Turrets 鹿炮塔…