Hello, SFIA audio listeners, in this month's Nebula exclusive, Big Alien Theory,

we're asked at the reason alien civilizations might be rare is because most aliens are huge.

To hear it and every episode early and add free, plus hours of bonus content,

check out go.nebola.t.v.t.v. And use my code, Isaac Arthur.

Good afternoon, everyone, and welcome to the SFIA monthly live stream Q&A.

We'll get started in just a moment, but go ahead and start getting your questions in the chat

window so our moderators can start relaying those to me as soon as we start.

Please try to keep the questions concise and watch your spelling and try to be polite to others in the chat.

We usually go for about an hour so you probably want to grab a drink and a snack, though

we'll take a break about halfway through too.

With all that said, welcome and let's get started.

Good afternoon everybody and welcome to our live stream for March 2022.

We're going to start taking your questions in just a moment, but as usual, we'll be going

to have your questions submitted to our moderators in the chat.

They'll go through and find questions, and they'll post them over to my lovely assistant

and wife, Sarah, who will be reading them for today.

And she'll go ahead and start us off for the

question. Well, yes. So our first question today is from Spaceman, and he wants to know if you think

that magnetic monopoles are real. Okay, so for some context, a magnetic monopole is the idea that

normally you have a magnet that's got a dipole, a north and a south side. And the idea is if you cut a magnet in half, like a little ball magnet,

if I just cut that in half, there's still a new north side and south side.

You get two of them, a little bit like quarks, right?

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