Kris Zyp, database expert and co-founder of HarperDB, discusses choosing a database for your project. They talk about factors to consider, like speed, consistency, scalability, and security. They delve into the differences between relational and non-relational databases and the importance of low latency in user interfaces. They also explore the unique features of HarperDB and discuss real-life scenarios where speed and latency play a crucial role.