This document summarizes a presentation by Haoyuan Li, CEO of Alluxio Inc., about Alluxio's unification of data access at memory speed across storage systems. It discusses Alluxio's history starting at UC Berkeley in 2012, its open source release in 2013, and growing user base. Alluxio provides a virtualized file system that allows applications to access data from different storage systems like HDFS, S3, Swift at memory speed. Case studies show customers experience 15-300x speedups and workflows that were previously impossible.