https://www.mckinsey.com/industries/technology-media-and-telecommunications/our-insights/rules-of-engagement-winning-with-the-basics-in-digital-telecommunications
https://knowledge.wharton.upenn.edu/article/whats-mine-consumption-changing/?utm_source=kw_newsletter&utm_medium=email&utm_campaign=2021-03-02
http://advances.sciencemag.org/content/advances/3/7/e1602821.full.pdf