Is the Cosmological Arrow of Time Linked to the Thermodynamic Arrow of Time?

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Is the cosmological arrow of time just a special case of the thermodynamic arrow of time, where the universe is the isolated system?
 
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short answer: yes

the longer answer is nicely summed up in this post by Sean Carrol on the blog Cosmic Variance

http://cosmicvariance.com/2006/08/01/boltzmanns-anthropic-brain/

Its not an overly long read and helps to explain a lot of the issues surrounding the cosmological arrow of time and how our Universe could have started in such a low entropy state.
 

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