Upsides To Making A Portal To Heaven  
    To   Build  The   Factory   There   
  
                                          
 First  Of  All, Real Estate:  The Highly 
 Fractalized  Geometry  (Not  Proven  But 
 Likely To  Be  The Case) Implies  Almost 
 Unlimited  Room; Even If The Portal Tech 
 Would  Be  Stolen,  Chances  Of  Running 
 Into  A  Competitor Is  Close  To  None, 
                                          
 Secondly,  The  Resources:  Heavens  Own 
 Alchemical   Properties  (Proof  Exist!) 
 Makes Most  Base  Materials  Easily  And 
 Readily Available.  Once  The  Molecular 
 Movement Patterns  Are  Mapped Out,  Any 
 Compound   Can   Be  Created   Virtually 
 Without                            Cost. 
                                          
                                          
  
   Downsides  To Making  A Portal  To   
   Heaven To  Build The Factory  There  
  
                                          
 Current  Portal Tech  Takes Some  Energy 
 To Hold Open,  Which  Isn'T A Problem In 
 Itself.  Test Results  However Has Shown 
 That Without An Active  Tether, Heaven'S 
 Time Flow Breaks  Down Completely.  Even 
 A Momentary Fluctuation  Of  The  Portal 
 Would   Render    All    Remote   Assets 
 Practically  Lost.  Much  Care  Must  Be 
 Taken  To   Maintain  Portal  Stability. 
 (One Option  Could Be  Several  Portals)