I don't really see it as optimism, more confidence from observing and analysing it now for about five years using formal systems engineering tools and experience. More than 10% of the energy we use now is from solar, but still we only issue money on non-solar, whilst the solar scales up, can't get around the fact that money has to devalue to zero, if it isn't representing the real thing of value. But when they do issue it, then the power of capital is pretty much instantly destroyed. We saw it when 4Tn was issued in the US, oil prices went negative, and the environment made the only spike of positive recovery seen. The stimulus which caused that, has to happen again, but this time it will be left on, and they can't claim that it is from finite sources, since the energy from the sun is endless. I can't see how this can be gotten around. The outcome is pretty cool, but the folk who need to change might cause a lot more damage yet, before they give in to the inevitable.