for the first two, they are dealing with tons of data on people's interests, machine learning, spam algorithms, search infrastructure, not just the pageviews.
the only hard technical part of Medium is perhaps their content recommendations, but thats it. dealing with a ton of pageviews is hard, yes but nowhere near the complexity of dealing with what others are doing. you can solve that problem with more machines and money if need be. hard problems (ie google search) can only be solved with PHDs and thinking.
the only hard technical part of Medium is perhaps their content recommendations, but thats it. dealing with a ton of pageviews is hard, yes but nowhere near the complexity of dealing with what others are doing. you can solve that problem with more machines and money if need be. hard problems (ie google search) can only be solved with PHDs and thinking.