Meet Mark, the crazy genius who designed an airplane while drunk

A US college student got very drunk and designed an entire plane. His friend's tweet about it has gone viral and been retweeted more than 30,000 times. We talk to the guys "

The news is, to put it mildly, pretty depressing recently - social media equally so. Twitter timelines are filled with the horrors of war and unspeakable tragedy, so it was a blessed relief that late on Sunday night a tweet which was a source of unadulterated joy started to go viral.

Enter Keith Fraley, a 19-year-old second year student of software engineering at Michigan Tech college, and his tweet about his roommate, Mark, a mechanical engineering student, who arrived home wasted and managed to design an entire plane - and woke up with no memory the next day.