A few years ago, a study found that only 56% of people could correctly identify sarcasm in an email (gee, that’s a surprise). Thankfully, there’s now a computer algorithm that can do better.

+ This is my favorite headline of the day: Self-driving cars must have driver behind the wheel, California says.

+ Quartz takes you inside the ugly war between fake Christmas tree makers and real tree growers. (Last week, my 9 year-old son explained to his younger sister that there is no Santa Claus, and even if there were, he wouldn’t come to our house because we’re Jewish and we have a gas fireplace, so there’s no way he could get past the glass. All holiday wars are ugly.)

+ There’s still time to have your photo taken with Fashion Santa. (This guy definitely looks like he prefers Dos Equis.)