From my understanding we no longer compute states! How would we 'compute' a startTime state for example? Using Flow.stateMerge ?

You can compute using regular Observable cells. You would create an Observable cell with: ``` startTime = Flow.dayjs(time).subtract(1, 'day'); ``` This uses Observable reactivity. Whenever `time` changes, the cell will recalculate. The advantage of doing it like this rather than using a Flo.w RDF computed is that the computed value is visible directly in the notebook and can be used in other cells such as queries.