Scientists warn of AI collapse -- And other Science News of the Week

This is our weekly compilation of science news:

0:00 - Scientists warn of AI collapse 4:35 - New Compact Disks could exceed petabytes of memory storage 9:50 - New rumors of sentient AI 13:57 - New heat pumps could actually make a difference 22:20 - Exploding stars made of dark matter could heat up universe 28:27 - What do two-letter domain endings mean?