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)