> We already had viruses on DOS before CDs existed. But they weren't a credible threat that was significant enough to be worth worrying about. We already have

> We already had viruses on DOS before CDs existed. But they weren't a credible threat that was significant enough to be worth worrying about. We already have guns, but I don't do anything to protect myself against gun attack. It wouldn't be worth the time or effort or inconvenience for the level of threat. Maybe in thirty years we'll live in a dystopia and it'll be laughable that I went around unprotected against guns? But for today it's reasonable to ignore.