What is concurrency vs parallelism in Go ?

Concurrency juggles tasks on one core; parallelism runs them truly simultaneous on multiples. Goroutines enable both.

How do channels fix race conditions in Event Sourcing?

One channel per aggregate serializes commands, while others parallelize.

Perfectly—ordered writes, parallel reads, no overdrafts.

Two withdrawals slam an account at once—both approve, balance tanks negative. Go's channels stop that cold, juggling concurrency without the crash.

theAIcatchup Apr 10, 2026 3 min read

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Community-driven. Code-first.

#CQRS Go #Go concurrency #event-sourcing #goroutines channels #parallelism in Go

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Originally reported by Dev.to