What It Would Take to Build a Dyson Sphere Posted by walkingolof on Saturday June 16, 2018 @02:10PM from the popularmechanics.com dept. https://www.popularmechanics.com/space/a22547/pbs-space-time-dyson-sphere/ ( 1 comment | on HN )
https://www.pbs.org/video/pbs-space-time-dyson-sphere/
The article is just a plug for this video and pushing ads for popular mechanics.