Indeed - I just find his theory pretty fascinating, that's all 
I think there is great potential for major, major change with cheap energy such as this, but, as with everything, there comes costs. So, assuming what he theorizes is possible, what would the costs be? We know some of the benefits - far lower usage of oil & other natural fuels = less pollution & environmental destruction, potentially greater world good (less developed countries get cheap power => become more industrialized), etc.
But costs? Well, with cheap (free?) energy, energy efficiency is no longer important. So we'll spend less effort making more efficient appliances & devices. Lower electricity drives down the cost of manufacturing, so we'll have more capacity to build "stuff", which could use up more raw materials, create more pollution & toxic wastes, and increase credit card debt
Also - more power = more destructive weapons. We could see whole new classes of weapons that are just in development now, but require far too much power to be practical with today's technology. That could be scary.
One final upside - as the cost of power decreases, web-hosting could get even cheaper
(Although, for $39.50/year, I'm more than happy with Dixiesys! 
I think there is great potential for major, major change with cheap energy such as this, but, as with everything, there comes costs. So, assuming what he theorizes is possible, what would the costs be? We know some of the benefits - far lower usage of oil & other natural fuels = less pollution & environmental destruction, potentially greater world good (less developed countries get cheap power => become more industrialized), etc.
But costs? Well, with cheap (free?) energy, energy efficiency is no longer important. So we'll spend less effort making more efficient appliances & devices. Lower electricity drives down the cost of manufacturing, so we'll have more capacity to build "stuff", which could use up more raw materials, create more pollution & toxic wastes, and increase credit card debt
One final upside - as the cost of power decreases, web-hosting could get even cheaper