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)