When asked about SEO, my answer is …

Google wants to identify an authoritative resource for the answer to any query, so if what you are doing doesn’t help with that, you’re probably heading down the wrong path.  A computer can figure out how to stuff keywords, an authoritative resource makes it sound good in English (or whatever the preferred language is).

Here are some examples of trying to find the “silver bullet”, rather than trying to work to be an expert.