It's an Internet service located at https://wordpress.com. As a subscriber, you get your own blog. It's free for the basic stuff, or you can become a paid subscriber to access more functionality.

(Key word being service. You don't own a blog, you rent it.)

That's either a rather funny answer or a very sad one.

If you open the box to check which one it is, be sure to catch the cat or remove the cat's body.

Ah, but you just provided a measurement :)

This is fair.

I was just speaking as another data scientist/techie person, like the OP.

I do agree that it is 100% not easy for most people.

Right... Look, Facebook's interface looks 10x more confusing than WordPress to me. If I could manage to learn it, someone using Facebook can manage to follow a few step by step guides on WordPress.