Circles for different messages to different groups, as well as the universal profile for logging into all your favorite Google services. It's not my fault these were harebrained ideas, but they were presented as revolutionary. The ideas are still arguably revolutionary (Slack delivers where Wave failed) but Google's execution was lacking. Same fundamental issue facing so many of their other programs.
And the Russians dreamed of going to the moon but that's the rub with consumer products - the market has to accept them for it to be an accomplishment. Google thought they'd found the magic recipe and pitched it as something for everyone that was a huge breakthrough. Being first with features or flows doesn't matter at all. The only thing that matters is making it relevant to users' lives, which all parties failed at. Circles is a bad model for a mass market.
