Are Our Attention Spans Getting Shorter?

I'm not sure about yours;  I've downloaded Longform and Tweetbot, but I've only used one of them so far this month.

Santayana 2015: Those who do not remember the past are probably watching Fox News. #foxnews #LOLGOP
— David Hart (@hartofak) April 1, 2015

CNN reporter in Tikrit. Bill O’Reilly sees it, claims to be reporting from war zone. #foxnews
— David Hart (@hartofak) April 2, 2015

TGIF!! Starting the weekend big time with Grimm & Amazing Race. I’m still young right? #AARP
— David Hart (@hartofak) April 3, 2015