The people who get hit hardest are usually the ones who built everything on one strategy. If all your traffic comes from one place, one change can wipe it out completely. The smarter approach is to build traffic from several sources at the same time, including email lists, social media, and referral traffic, not just search engines. Publishing content that genuinely helps people also matters because Google's updates tend to reward that over time. What do you think is the most important thing someone can do to protect against sudden Google changes?