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)