What do you mean by physically cracked down? I have nothing to do with the darknet so I have to get news of anything happening to it here. The last big news I remember was when evolution closed because it said there was a new way for the feds to attack it. Have they devised another new way to attack the darknet?

Ten years ago there were people that thought cash would no longer exist by now, and the same applies to twenty years ago. I don't think cash will disappear that quickly. We had credit and debit cards decades ago, but they haven't completely replaced cash yet. Bitcoin could become more widely used, but I don't think it will ever replace cash.