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)