Cancer as a 'Dynamic Process'

NY Times article HERE acknowledging what many have known for a long time: cancer is not necessarily a 'linear' phenomena, but can reverse itself. No doubt it has to do with individual immune function, as well as dozens of other synergistic variables, unique to each individual and each form of cancer. Not sure why this view takes so long to get out; there have been plenty of examples over decades, both anecdotally and in the literature, to bear it out... but, still treated as 'news.'