almost 3 million square feet of exhibition space. Visitors must dodge rolling robots and people stumbling around, their eyes covered by virtual reality headsets.

What is the best way to find out about tech / social media events in London?

Subscribe for London-related tech/events newsletters. Like this one that have just emerged: London Brief. It’s pretty informative, has a clever form and is updated every week. There you can find news, tips, events suggestions, etc.
There are many more in this article.