Multitasking became possible and focus quietly died. That is the claim behind the longest post here, written by somebody who got more done before breakfast one morning than in the previous four working days and wanted to work out why. Eleven ways to get the attention back follow, and none of them are gentle.
The practical posts are unusually well aimed. What to do with a company page on a professional network so that anybody engages with it. Twenty-six things to fix in a blog post. Four ways to find new customers without a budget, beginning with writing to people individually rather than sending everybody the same thing.
There is a post on five ways your own brain makes you miserable, which is the psychological version of the same argument.
The morning list is short and blunt, including the line that anger is the biggest waste of energy available to you.
Read the focus post if your week disappeared and you cannot say into what.