In a Google Tech Talk on October 22, 2012, Google’s Chief Economist Hal Varian said that Google runs a lot of experiments. So many that a typical Google searcher/user will see a dozen or more experiments when they access Google.

Greg Linden caught this remark and posted it on his Google+ page. He said around 26 minutes into the video Hal said:

Here is the video:

The talk was about how to handle all that data and with dozens of experiments seen and acted on by each Google user several times per day – that is a lot of data.

For a webmaster and SEO – it can be a challenge managing all those variables as well.

Forum discussion at Google+.