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)