I'd disagree. There's a common saying that the great companies of today are made by someone trawling the forgotten CS papers of the 1980s, and implementing them

I'd disagree. There's a common saying that the great companies of today are made by someone trawling the forgotten CS papers of the 1980s, and implementing them to solve problems that didn't exist then. Also this patent expires in 8 years. Will we still need caches in 8 years? Why yes we will!