Some interesting metrics on the attention span of consumers before they make a decision to spend more time on the content or not.

Shared by Lulu Cheng in a conversation with Shane Parrish

And then in terms of text, because one of the ways that people get to know you is through yourwriting, I don’t know about seconds, but it’s like thefirst paragraph. For anemail, it’s thesubject line. For atweet, it’s thefirst line, first sentence, the hook. So the opportunity, the surface area of the opportunity we have to latch on, is getting more and more fine,which means that the hook that we need to use has to get more and more sharp.

• Writing : First Paragraph
• Email: Subject Line
• Tweet : First Line
• Video : First 30 seconds