I can see why you might think that, but that’s not how it works. All of the text is downloaded up front, but is hidden initially. It is made to appear as you scroll, but it does not get the text via additional web requests. If you view the page source, or inspect element you can see it all there.
I always assumed it was a way for them to prevent fully loading all the content until it’s actively being pulled. Perhaps it saves on some bandwidth?
I can see why you might think that, but that’s not how it works. All of the text is downloaded up front, but is hidden initially. It is made to appear as you scroll, but it does not get the text via additional web requests. If you view the page source, or inspect element you can see it all there.
Huh. TIL. So what’s the real reason then? Design choice? Then 🤮
Someone, somewhere thought it looked cool and marketing people have been copying it ever since to make their site “pop”.