We were ahead of the curve in having our attention spans hijacked by infinite content. This article is from 2003 (but has been updated over time, as e.g. Spotify and Slack came out later) and was already a warning: https://randsinrepose.com/archives/nadd/

edit: ah finally; through another HN comment (https://news.ycombinator.com/item?id=528944) I was able to find the original link to the article (http://www.randsinrepose.com/archives/2003/07/10/nadd.html) and an archived version of the first version (https://web.archive.org/web/20031008160117/http://www.randsi...). Notably, the list of activities changed:

2003 version:

> Me, I've got a terminal session open to a chat room, I'm listening to music, I've got Safari open with three tabs open where I'm watching Blogshares, tinkering with a web site, and looking at weekend movie returns. Not done yet. I've got iChat open, ESPN.COM is downloading sports new trailers in the background, and I've got two notepads open where I'm capturing random thoughts for later integration into various to do lists. Oh yeah, I'm writing this column, as well.

Current version:

> Me, I’ve got Slack opened and logged into four different teams, I’m listening to music in Spotify, I’ve got Chrome open with three tabs where I’m watching stocks on E*TRADE, I’m tinkering with WordPress, and I’m looking at weekend movie returns. Not done yet. I’ve got iMessage open, Tweetbot is merrily streaming the latest fortune cookies from friends, and I’ve got two Sublime windows open where I’m capturing random thoughts for later integration into various to-do lists. Oh yeah, I’m rewriting this article as well.