That just jumped out at me as an odd stat.
The point of the post was that if you look at how the poor have fared since 1984, things aren't really so bad. Almost none of the poor had computers, cell phones, microwaves or clothes dryers and less than half had air conditioning. Not all of those are life changing. But computers almost certainly are. Computers - hand in hand with the internet - open a vast world of education and knowledge to the poor that they would have almost certainly been locked out of in the past.
Microwaves, clothes dryers, and cell phones, while not life changing in the same way, certainly are time savers, allowing the poor to work longer hours, or to have more leisure time while working the same hours. Air conditioning, although largely taken for granted, is a life-saving invention. And I'm not being dramatic. It literally saves lives.
The author of the post also notes that while many "experts" lament how wages have been largely stagnant over the last 20 or 30 years, that isn't the whole picture. As computers and cell phones and microwaves have become cheaper we now live better lives, even if we make the same money, than we did 30 years ago. Not only that, but thanks to microwaves, VCRs, the internet and things like dryers, we have more free time, and more entertainment options available to us.
So it's not really fair to simply lament that wages have largely remained the same over the last 30 or so years, because in the big picture, our lives are vastly easier than they were 30 years ago, and we have access to a much wider array of entertainment and educational options.