The Concurrency Problem

What's broken, what almost worked, and what a real fix might look like

  1. 1
    Message Passing Is Shared Mutable State February 20, 2026

    The failure of message passing to eliminate concurrency bugs wasn't surprising, it was predicted.

  2. 2
    The Isolation Trap
  3. 3
    What Async Promised and What It Delivered
  4. 4
    Dataflow, FRP, and STM
  5. 5
    Rust and Ownership
  6. 6
    A Unifying Theory
  7. 7
    What Should Concurrency Look Like?

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