Now hold up a second. There is an oft-repeated quote about people and intelligence. It talks about how individuals can be bright, interesting, witty, and overall great. But people? Masses of people are invariable stupid.Zippers? Useful idea. People are happy to make them and use them in a variety of situations. Velcro? Useful idea, with even wider usefulness. Orange pigments and dyes? Useful in a variety of situations, the ideas men have conceived for making and improving them will be preserved in the tiny sliver of humanity employed in doing such things, but those ideas will never gain a foothold in most minds. The color orange itself will be widely employed, from bags to labels to fashion to road cones. "Orange will propagate if it can" will remain a nonsense statement.
It becomes doubly silly when one attempts to introduce a new buzzword, "temes," to personify the technology we use to store and distribute ideas.
Stretching the metaphor to suggest that humanity may just be a transitional species in danger of being subjugated by our new teme overlords is the kind of idea that only deserves to be seriously discussed by freshmen at 3 AM in the fanciful philosophy dorm. I can't believe that woman got invited to TED.
The social gestalt is definitely an interesting phenomena. Information propagation. What causes the social gestalt to act in ways that no one individual would cause? Take riots. If you put most of the rioters in a voting booth and asked them 'riot?' you'd probably get 95% no, 5% yes. Angry? Sure. Want to do something about it? Sure. Riot and loot? They'd sit there and tell you 'no, I wouldn't.' And yet they do. Why? What triggered it?
Certainly information propagates through the social gestalt in a way that is hard to predict, much less control. And while the strawman of 'meme overlords' is obviously worthless, the concept that certain ideas have the power to hijack society for a time is powerful. Certainly marketing attempts to tap exactly that frequently, looking to create memes, social patterns, crazes.