[nikhilsimha]

There were two main drivers -

- inability to back-test new real-time features. People were forced to log-and-wait to create training sets for months. Chronon reduces this to hours or days.

- the difficulty of creating the lambda system (batch pipeline, streaming pipeline, index, serving endpoint) for every feature group. In chronon, you simply set a flag on your feature definition to spin up the lambda system.