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)