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)