I agree for the most part, but it would have been nice for the article to mention how much energy it takes to flip a bit, and whether or not that value varies i

I agree for the most part, but it would have been nice for the article to mention how much energy it takes to flip a bit, and whether or not that value varies in different circumstances. A flipped bit can mean the difference between tons of snow falling down a mountainside or staying where it is. (Down force greater than stuck force? OK, avalanche!) Does that bit cost the same energy as the one described in the article? If so, I deeply care how much energy that is!