When Can We Send a Human Being out of the Solar System?

We can do this TODAY. Just trace a nice route using gravitational slings, put our little friend on the tip of this:

And engage thrusters! In only over seven or eight years, he — or she — will have passed Pluto’s orbit! In a few more decades, he’ll be able to reach the heliopause, a handful of thousands of years will get the Oort Cloud and if oriented in the right…