[jimt]

With some like 10^20 stars in the observable universe, it just seems awfully strange to think we're the only one in the entire creation supporting intelligent life.

Ten to the twentieth is a mighty big number.

[jimt]

some like = something like

[RightWhale]

we're the only one in the entire creation supporting intelligent life.

On the other hand, several civilization fronts could have passed through our solar system already. Come and gone. How would we know?