Looking at the recently announced schedule of the upcoming Chrome Dev Summit reminded me that Google has this recurring thing that many talks are given by two speakers. Sometimes, when speakers are good and know each other well, e.g. by hosting screencasts together, it works beautifully (e.g. Jake Archibald with Surma; or Paul Lewis with Surma, etc.), and the effect of the two speakers is not additive (a part by one plus a part by the other), but multiplicative (an entertaining performance); but sometimes the interactions between the two speakers are so strained and artificial, that the talk becomes unbearably embarrassing, raising the question of what was the point of making them go together in the first place.
An example of the latter is the talk about the new Googlebot from the latest IO: