BEAM OTP: Why Everyone Keeps Reinventing It

The BEAM solved process-based concurrency in 1986 with isolated state and message passing. Now every AI agent framework and distributed systems library is reinventing the same pattern, because the problem demands it. BEAM processes weigh ~2KB, get their own garbage collection, and are preemptively scheduled -- millions of them, no locks, no shared memory. The post traces why Python, Go, and other ecosystems keep converging on OTP's supervision trees and fault recovery, and why bolting those patterns onto a runtime that wasn't built for them never quite works.

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