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)