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)