Will Search Engine Optimization Ever Lose Its Effectiveness?

That is the most silliest question I have ever heard of.  Talking about link baiting, that is known as search engine optimization right?  However, there are basics for that question.  As we all know that there is other sources like video marketing or social medias that are rising.  So does that mean spam is also?  Just like myself no one likes spam.  Therefore, back to my question will search engine optimization be effective within the next couple of years or will something else take its place?  The World Wide Web is always making dramatic changes so does that mean that search engine optimization will make the changes also?