Sunday 1 April 2012

Draw Something CEO, grace and high school mathematics

Dan Porter, CEO of OMGPop, has had a good week. His game, Draw Something (it is an asynchronous Pictionary for cellphones, like Words With Friends is an asynchronous Scrabble) has taken off like mad, and Zynga bought his company for over $200 million. However, one employee didn't go along to Zynga, and Dan's been whining on twitter:

This has drawn some reactions from others, eg Notch, CEO of Minecaraft:
and Dick Costolo, CEO of Twitter:
and the lovely Tom Coates:

Now just before this crass public display of arrogance, he said something just as telling:

The thing is, Draw Something has a maths problem. The so-called Birthday Paradox is kicking in. This is named for the unexpected result that if you have 23 people in a room, there's a 50:50 chance two of them have the same birthday.

There's a similar effect with games. If you keep randomly picking a word from a list, you'll see repeats quickly. Classic board games understand this - this is why Balderdash, Pictionary, Trivial Pursuit etc insist you use a discard pile after shuffling and picking a question, so you only pick a new card from those you haven't seen. Draw Something isn't doing this, so we're all seeing words repeat, which is discouraging play. This is all over twitter too:

One way or another, I think Draw Something has peaked.