text: /*
  
  - store entities in shared memory entity arrays
  - send entities in transit to other chunk's mailboxes
    - one mailbox for each sender-receiver pair
    - receiver reads new object, sets "free" flag
    - sender puts message in free object, removes "free" flag when done
  
  - addressing entities currently residing in other chunks??
    - own chunk/other chunks?
  
  
  
  
  Information that needs to be shared globally
  - a lot for determining next state transition of person
  
  */