If I have 20GB of data and 16GB of RAM, it's simply never going to fit and will have to page to disk. That page will always be slower than RAM. Even if the RAM

If I have 20GB of data and 16GB of RAM, it's simply never going to fit and will have to page to disk. That page will always be slower than RAM. Even if the RAM were as fast as L1 cache, it still wouldn't do a thing for the SSD bottleneck.