A team of researchers at the University of Texas at Austin and the Auckland Medical School, New Zealand, has developed a programme that indicates personality type based on the content of one's tweets. Using research linking language use to personality, the Linguistic Inquiry and Word Count project examines the use of "junk" words like "I", "You", "for", "with", etc to gauge how upbeat, depressed, distant or personable someone is likely to be.

We can agree Ross O’Carroll-Kelly comes across as upbeat and arrogant while not very analytic in his thinking; a test of his Twitter account confirms that. www.analyzewords.com/index.php