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)