So the fate… of the entire human race depends upon my wild guess      — Doctor Gaius Baltar (Battlestar Galactica)     Actually, the quote that I really wanted to say was “So the fate… of the entire PowerPivot deployment depends upon my wild a** guess?!  WTF!!!”   Yet, this is not the time for us to go quietly in the night!  Do not go gentle into that good night! (Dylan Thomas)   Okay, I’ll stop now. But seriously, PowerPivot for SharePoint for an existing farm installation can be complex and mind numbing at times – especially with the 20…