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)