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)