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)