In all seriousness, SEO in the sense of the word that we used to know has not existed for a long time now. Once upon a time SEO was really just counting how many incoming links your site had and the keywords you were using.

Search engines like Google have become far more advanced in the last 4 or so years in regards to what they can parse and understand. They don't just follow links, they analyse your content, they factor in the response time of your site, whether or not your site is responsive and tonnes of other things.

I think the best kind of SEO in 2015 and onwards is just building a great site. Nicely optimised, use gzip compression, minify and combine your CSS and Javascript, use icon fonts and the big one: write great content and people will naturally link to it.