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.nebola.tv slash Isaac Arthur and use my code, Isaac Arthur.

In the grand theater of the cosmos, amidst a myriad of distant suns and ancient galaxies,

the Fermi paradox presents a haunting silence, where a cacophony of alien conversations should exist.

Where is everyone?

Or are we alone?

Welcome to Science and Futurism with Isaac Arthur, for our long-requested update to the

Forby Paradox Solution and Compendium episodes done back when the show was brand new, most

of a decade ago.

I am your host, the aforementioned Isaac Arthur, writer and narrator for

the show, and also president of the National Space Society. Long-time watchers of the show

can tell you there's few topics we spend more time on than the Fermi Paradox, and as we

go through our entries today, I'll often reference other episodes that have explored a topic

in greater detail, as our goal today is to give a quick but proper summary of all major

concepts involved in the Fermi paradox, not just solutions, but critical concepts like

what a filter is, or how faster than light travel or entropy-violating machinery would alter the equation.

Many of these topics are well known, others more obscure or newer, or old but newly named,

and with deeper exploration in a paper doing some mathematical modeling, some we've never looked

at on the show before, others again have their own episodes. As we've never looked at on the show before. Others, again, have their

own episodes. As we found out from other compendium episodes, YouTube has a limit of 100 entries,

...