Most threads in this section trace knowledge that got lost or reinvented blind. Durable execution is the counter-example.
BPM tools in the early 2000s already solved the hard parts of long-running workflows: crash recovery, compensation logic, audit trails. That knowledge didn't drift into the agent era by osmosis. Temporal's co-founders carried it personally across Amazon SWF, Azure Durable Task Framework, and Uber's Cadence before launching their own company in 2019. Same problem, refined across decades by the same hands.
Now agent frameworks like LangGraph advertise "durable execution" as a feature. The vocabulary crossed the boundary. Whether the full guarantee followed is a different conversation.
