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)