This is certainly plausible. Nevertheless, the resulting changes in economy would drive more inequality and reward people with capital and/or technology
I do agree with the author but As others pointed out the algos currently are not that good to find the top10/20 stories. And the question remains that if you limit users to 20, would they feel dissatisfied that there must be more and that they are missing out?
So is the onus on the mobile developer to solve or for the user to adjust their behavior?