[SuoDuanDao]

George RR Martin made a good point- that if a nerd is someone with a lot of knowledge about something others find uninteresting, we've all become nerds with the advent of the internet. It's just too easy to go down a rabbit hole not to be a nerd in regards to something.

[PurpleRamen]

But going down a rabbit hole in the era of internet does not necessarily mean gaining a lot of knowledge. Usually it means binge learning other people's information and conclusions, while not making any relevant experience and conclusion on your own, thus not making much knowledge yourself. And then moving to the next rabbit hole, to forget most things you have learned just now.

For me, a nerd is also someone who sticks to the hole and builds their own labyrinth to some degree.