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)