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)