> I'm surprised this is written like zipper merging is some kind of recently discovered secret. Yeah, it's funny :) In U.S. they have the same with road circle

> I'm surprised this is written like zipper merging is some kind of recently discovered secret. Yeah, it's funny :) In U.S. they have the same with road circles/roundabout. Some time ago I watched TED talk where the speaker was talking about this like it was some amazing innovation :)