I hope you've been paying close attention all these years, because today I'm springing

a surprise pop quiz on you.

It's time to put your knowledge of skeptoidy topics to the test and impress your friends.

That is, assuming you listen to podcasts with friends.

That's coming up right now on Skeptoid.

You're listening to Skeptoid.

I'm Brian Dunning from Skeptoid.com.

Pop Quiz, 19 years of Skeptoid.

Welcome to the show that separates fact from fiction, science from pseudoscience, real history from fake history, and helps us all make better life decisions by knowing what's real and what's not.

We've just celebrated the 19th birthday of Skeptoid.

19 straight years of weekly shows. And that's pretty cool. So experience Skeptoid listeners

know what that means for today's show. It's time for a pop quiz with one question from each

of the previous 19 years. And no, you don't have to have listened to every show for that long.

You just need a good solid foundation of science literacy and critical thinking,

which obviously you have or you wouldn't be a skeptoid listener.

Keep track of your score.

We're going to give you a ranking at the end.

So here we go. If you're

listening with someone and find yourselves needing a moment to confer after any question,

then you are encouraged to push the pause button and deliberate as long as necessary.

From 2006, episode number six, wheatgrass juice.

Of the many pseudoscientific medical benefits professed by some sellers of wheatgrass juice

...