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)