[gosheroo]

New ideas take an effort to understand and most new things don't work or even if they do work they remain unadopted. Including apparently wonderful and well-developed ideas.

Come to thing of it we have only a partial understanding of the role of present technologies. In evolutionary terms, things persist for multiple reasons and we can't identify all of them. Small wonder we can't predict the future of technology and remain sceptical of implied claims to the contrary.