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 ad-free,

plus hours of bonus content,

check out go.nebula.tv slash Isaac Arthur,

and use my code, Isaac Arthur.

Music slash Isaac Arthur 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 monthly live stream Q&A. We'll get start with your questions in just a moment in the chat window. As usual, we'll be

taking questions from the audience as we go along. We have a couple to start off with from last month, thought that people got in early, and as usual, we'll be taking questions from the audience as we go along. We have a couple to start off with from last month or that people got in early.

And as usual, we'll be joined by my wife today, ask you questions, the honorable Sarah Lane fellow author.

Oh my goodness, so much fluff.

So this is a gorgeous spring day, at least here in Northeast Ohio. We had a chance

to go bicycling yesterday. It's a good hobby. If you haven't gotten to enjoy the good weather,

...