Can somebody elaborate on the "go-for-it window"? > . The Go-For-It Window: Large gaps between accelerating technologies and stagnating social norms create lucrative new business opportunities. But they are only available for a short time when people can capitalize on the difference between the real and perceived state of the world. For example, 2007 was the perfect time to launch the iPhone, but Google Glasses launched too early.

What was the "stagnantig social norms" in that benefited the iPhone era, yet left Google Glasses in the dustbin?