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Event Sourcing • Greg Young • GOTO 2014

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Further reading 1

Can today’s record explain yesterday’s decision? →Keep the value a decision actually used so that later changes do not erase its explanation.This video helps answer · What else is needed to reconstruct the state at the time?

Caption notes

Event sourcing records changes and derives current state from their sequence. Replaying the past depends on a projection that knows what each event does.

Video or transcript source ↗
Original passages · 2
I could replay them and I could give you back
Event Sourcing • Greg Young • GOTO 2014 · ▶ 5:41–5:48
current state is a left fold of previous behaviors
Event Sourcing • Greg Young • GOTO 2014 · ▶ 6:13–6:20

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