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)