"The cosmos has consciousness because we are conscious; it makes decisions because we make decisions; "

I would be fascinated to see that proof.

I'll have a crack at it, but it might be a lot more trivial and unenlightening than you expected :P

1) We are conscious
2) We are part of the cosmos
3) Anything that has a conscious part is itself conscious.
Therefore, behold! The cosmos is conscious!

1) and 2) are obvious. 3) is true because we describe people as conscious even tho it's only parts our brains that are. The extra unconscious arms and legs don't stop us from being conscious.