Hi there Granpa Festus. Thank you very much for your feedback. The point I was making was that the starting point for all technological devices is binary. Of course, as I well know, we have moved on a long way from that. And in fact, if you read at least two of my other pieces you will see that I am pretty much up to speed on those matters. The first is self-explanatory and the second is a science fiction novel I am in the middle of writing which is based on the premise that that new technology a thousand years from now will be second nature to us As for scary, not if we control it as it will need to be controlled. I think it is very exciting to be around in these early stages. Thank you once again.