Nobody is advancing pathological one bit starting entropy cases. Of course you need entropy. But you don&#x27;t need thousands of fresh bits every millisecond. You need a few hundred <i>once</i>.<p>More important: nobody knows if the entropy counter is truly conservative, because nobody knows how to properly count entropy. Linux makes educated guesses by assuming a model of entropy for the inputs (inter-arrival times of events). That&#x27;s far less solid than the rest of the random subsystem.