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)