I ran in to all this because of some talks with other HN'ers about computing fabrics, one of the big questions is 'clocked' or 'free running'.<p>That brought me to post my ideas on using 'life' as a very basic computing fabric, it's already proven to be Turing complete, so now to make it run without a global clock.<p>That would prove that a clock-free computing fabric of arbitrary size is a real life possibility.<p>I think it can be done, I'm not 100% sure yet.<p>That adder sounds like a bit of magic, do you have a link for that?<p>I can picture the cpu that 'sleeps on 0', basically the transitions are what clocks it forward so as long as you keep sending it 0's it simply never changes state right? (no state changes -&#62; minimal power consumption).