Attributions.

• "watching" by Kai Schreiber is licensed under CC BY-SA 2.0
• "Loveland frog" by Tim Bertelink is licensed under CC BY-SA 4.0
• Ghosts I-IV by Nine Inch Nails is licensed under CC BY-NC-SA 3.0
• "The Internet 2003" by Barrett Lyon/The Opte Project is licensed under CC BY-NC 4.0