Go back far enough and I remember you would Google a key phrase, and see the first full ten pages being the exact same article, as accordance with some SEO gami

Go back far enough and I remember you would Google a key phrase, and see the first full ten pages being the exact same article, as accordance with some SEO gaming scheme. Google quite reasonably now sees duplicate identical content as an issue, you can use the "canonical" HTML tag can be used to help it see the "real" link where several exist. I don't know what'll happen when there are only two copies of your page, but I'd hazard a guess it'll preference medium's domain over your own in most cases.