Time Travel works by generating a SQL statement or a CTE, which transforms the raw audit events into a snapshot of the table at a point in time with extra columns for the annotations. This feature is currently exposed on the enterprise product through the UI (which exposes a SQL explorer for your warehouse), but we are slowly shifting those features into the GQL API of core (give a table name, get a SQL model). Time travel works on the transaction level so you don’t lose any fidelity.