In essence, nothing has changed in the past few centuries, from the very moment when gold was found in California in the middle of the 19th century. Neither time, nor place, nor methods of extracting gold reserves have changed - only methods of its extraction have changed, which after a century and a half have become high-tech and almost virtual. Although everyone gets real money.
It's amazing how a Californian company Google managed to create a precedent for several years, in which anyone can develop their own core on the optimization Klondike, stuffing their own pockets with gold. In contrast to the Gold Rush of the last century, gold reserves are not running out, but every year they grow like a snowball, infecting the process of search engine optimization more and more people.
The most interesting thing is that the methods for extracting gold remain the same - you find a certain gold mine (a good search query), and you begin to “develop” it, hoping to pound the whole “placer” of related search queries. A wise, experienced optimizer can immediately recognize such things and put them into his service, while becoming free from the country in which he lives, from work that is disgusted and no longer needed, and do exactly what he dreamed all his life.
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Google gives freedom.
And who then will not say that SEO is just another round of human development? History repeats itself.