Meh, I am +/- 2 years within the author's age, and although I grumble here and there about young people practices (latinx?? yikes) I think I have an OK understanding of popular culture, including Internet things. Come on: memes, dabbing, dubs,tik tok,fortnite dances, Pewdiepie.Most of them are silly and funny things, not the exact solution of GR for 2 neutron stars colliding.
I will admit that there are things I believe, but I am not 100% sure if they are true because of my age. For example, although I hate nostalgia, I am convinced that modern mainstream music, let's say after the 2000s is severely lacking compared to what happened in the previous 60 or so years. There always be great musicians, doing great music, but right now the current popular stuff have been homogenized and sterilized to make it pallatable worlwide.