.175s x 365 x 13 ~= 830s per person over 13 year. Which is little less than 14min per user. Scaling by 8 billion people (which is way above the average amount over the period) that's 1.8 billion hours, which is 450 times less than the announced number
BlueMagma
This is the first comment I see that actually answers the question. Why on earth are people down voting is beyond me..
Now though, I'd love to get more details about the thought process as I myself never preorder anything ?
Edit : I've seen your answers to other comments, I guess it makes sense, all good reasons
The fact that these coincide with the first development of writings has nothing to do with the fact that we know about them. And therefore it is obvious that philosophical thought and complex belief system cannot have existed in pre-recorded history. Before the invention of written symbols, humans were idiots incapable of such things. It is also obvious that those great thinkers came up with everything on their own without relying on previous orally transmitted philosophical traditions and beliefs.
/s
Thank you I couldn't figure out that it was supposed to be "demon", that D is not realistic at all, I read lemon, "Clemon" at worst..