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)