It's dex night and I would like to be out in the desert with my telescope since the moon is down all night. Unfortunately I'm sick and I hurt my leg and the weather is apparently lousy, so instead I'm sitting at the computer clicking aimlessly at whatever catches my eye.
This means I'm going to torture you with another Ngram chart. This one compares how often English-language books mention various sources of news and entertainment:
(Actually, the most common thing books mention is books. Surprise! But I took it out so the others would show up better on the y-axis.)
The high point for radio is 1945, which is unsurprising. However, the high point for television is around 1958, after which it dips and then grows only slightly. This is sort of peculiar, no?
Newspaper has been slowly dropping since 1940 but then flattened in 1980. That was about the time the newspaper biz started to crater, so apparently being mentioned in books isn't correlated much with financial success.
Magazine has been pretty steady the entire time.
But then we get to the really surprising thing. With the exception of newspaper, everything takes a huge dive starting around 2000 or so. This includes both web and internet, which hardly seems possible.
Why? Your first guess—and mine—is probably that this is just some artifact of Google's database. But I tried out a whole bunch of ordinary words and there was absolutely no consistent decline starting around 2000. Every word acted fairly normally, which suggests the database is reasonably reflective of reality. The only words I found that plummeted were those referring to information and entertainment sources.¹
I'm sure there's an explanation for this, but I can't think of it. Web and internet are the most spectacular losers, which makes no sense at all, but radio, television, and the normally reliable magazine all start dropping more steeply too.
One possibility for the peculiar drop in mentions of web and internet is that generic references have given way to specific mentions of services like Facebook and Twitter. Sure enough, if you add up every reference to either the internet or a specific internet service, it comes to about 0.019% in 2000 and 0.014% in 2019. That's still down, but I only checked the dozen most popular social media sites, and the number would be much higher if I included other specific websites. Still, none of the specific sites started to get mentioned until about 2005, while references to internet and web began dropping in 2001 and 2003 respectively. I suppose that could have something to do with the dotcom bust, though I feel like I'm stretching here, and anyway, it doesn't explain the decline of all the non-internet words.
So what's going on? Is the lesson here that the Ngram viewer just isn't reliable? Or do books really mention internet half as much today as they did in 2001?
¹Except for book, which books continued to love talking about. In fact, mentions of book went up between 2000 and 2019.