Electronic/World Wide Web>Internet Article:  Trepanier, Trent (24 MAY 2016), No Man’s Sky: Vastness and Humanism Inhabit a Video Game, Retrieved on 2016-06-03

Source Material [thehumanist.com]

Electronic/World Wide Web>Internet Article:  Musk, Elon and Chen, Angela (20160602), Elon Musk: We're Probably Living in a Video Game, Retrieved on 2016-06-03

Source Material [gizmodo.com]