Skylar Tibbits: Can we make things that make themselves?

* 4 key factors
 + Decoded Assembly Sequences 
  - the DNA of how our buildings work
 + Programmability of Parts
  - take that sequence and use that to fold up, or reconfigure.  
 + Energy for Actuation
  - to activate from the program
 + Error Correction
  - .


* self- replication / self-guided replication
* biased chains - passive self-assembly systems