> The hash rate could be 1/1000 of what it is today > If you cut the hash rate that much the cost would be only $400 or so. > during an attack which costs 400

> The hash rate could be 1/1000 of what it is today > If you cut the hash rate that much the cost would be only $400 or so. > during an attack which costs 400k per hour > under your proposal [of reducing the hash rate by a factor of 1000] Perhaps I should have been more explicit, but it certainly isn't necessary. > So, $400,000/hr. Which, if the hash rate was "1/1000 of what it is today", would be reduced to 400$/hr.