Brother Geraghty, in this morningโ€™s Jolt newsletter (you should subscribe), comments on the story about a time traveller talking on a cell phone in a 1923 Charlie Chaplin movie. His take:

To paraphrase Brian Faughnan, if sheโ€™s a time traveler, she had better be calling someone to help her kill Hitler.

Actually, she should try to kill Stalin and Beria first โ€” in 1923, sheโ€™s got plenty of time to get to Hitler.

Of course, if you mess around with Hitler and time travel, you never know what could happen.