Tom Roston writes: “It’s hard to imagine the internet without Wikipedia. Just like the air we breathe, the definitive digital encyclopedia is the default resource for everything and everyone—from Google’s search bar to undergrad students embarking on research papers. It has more than 6 million entries in English, it is visited hundreds of millions of times per day, and it reflects whatever the world has on its mind: Trending pages this week include Tanya Roberts (R.I.P.), the Netflix drama Bridgerton, and, oh yes, the 25th Amendment to the United States Constitution. It was also never meant to exist—at least, not like this.”