Where is all this blog traffic coming from?

Normally this blog attracts about 700 page views per day, according to blogspot. However, yesterday it got 5000! I have no idea why. Presumably someone with a significant following Tweeted it.

If you know the answer, please let me know, even if you are a robot!

I have not seen a traffic increase like that this since I pointed out that Greg Scholes' "quantum biology" paper in Nature involved fitting 20 data points to a curve with 17 parameters.