True as far as it goes. Modern GC can mostly be done concurrently (it&#x27;s only heap compaction that requires stopping the world). Fully pauseless GC is very much possible (see e.g. Azul C4), as are e.g. architectures involving multiple short-lived processes with individual heaps. Even without that, it&#x27;s often possible to do a relatively small amount of manual work to do the things that require pausing only at appropriate times.