Released: 2 January 2017 Duration: 15 minutes, 37 seconds   Based upon a Dream of the Open Channel blog entry, we discuss why there may not be any galaxy-scale megastructures, but what sort of stellar class megastructures could we possibly observe out there. Please visit wowsignalpodcast.com for more information about this podcast.   Links: Why Search? The Jaws of Darkness Glimpsing Heat from Alien Technologies GHAT III: The Reddest Extended Sources from WISE The Tully-Fisher relation as a probe of Dysonian astroengineering in disk galaxies Earth in Human Hands Searching for Cost Optimized Interstellar Beacons   Wow! Signal Bursts   Credits: Host, Writer and Producer: Paul Carr Music: Jason Robinson   The Wow! Signal Podcast is distributed under the Creative Commons Attribution/Share-Alike license.