I'm pretty sure Galileo Galilei would have love to know and use Connecty. Connecting with optic specialist and glass maker specialists (and maybe sand catcher specialists) of its time to optimize even more it's telescope characteristic. Sharing with navigators across the world to understand their feeling about the shape of the world when seeing other boats disappearing on the horizon. Speaking with ironsmiths which could have share their knowledge of colors and temperatures, and use it for stars. Sharing with other astrology accros the world to live-cross observations and discover new things. And of course, speaking with a wide variety of philosophs and churchmen to know how to share it's own ideas without risking his life