Yea, that's a good way to go in the medium term. I like the Mill design, where every fetch from memory can return NaR (Not a Result, which is a little like a fl

Yea, that's a good way to go in the medium term. I like the Mill design, where every fetch from memory can return NaR (Not a Result, which is a little like a floating–point NaN), and all operations on a NaR take the same amount of time as normal but pass the NaR through. Also, they made sure to put the memory protection _before_ the cache, so when you don't have access to the memory you get the NaR before it even consults the cache. Looks like there are some nice performance benefits too. In the long term though? Who knows. Separate cpu+cache+memory hardware for every process seems a little crazy, but the alternatives might be worse.