Where did I ever say that? Your claim was about the Internet, not "progress" in general.
> Are you seriously arguing that the generation who used pocket protectors and HP calculators didn't have an advantage in concentration over the one who's been shown to distractedly check their phones every 15sec in case a cat might be doing something interesting?
Yes, because again you're generalizing to an entire population based on a stereotype. Do you think everyone back 50 years ago was similarly concentrating? No, because certain people can simply concentrate more than others, and those are the people building the Internet back then, and those are the same kinds of people who can build an Internet today. 99% of people were not doing so, we are talking about the differences of 0.0...1% of the population who built the Internet, so let's compare the same amount of people today too.