I have had a mentor for nearly 20 years and, while I moved nearly 1,000 miles away from him about two years into our mentoring relationship, we continued.
We didn’t do this by flying back and forth; we used collaborative technology.
At the time, “collaborative tech” was a camera and simple microphone mounted on our PCs at work. The technology evolved and soon we were sharing documents and data during our discussions, albeit still tied to our desks. Not too long after that, we were connecting from our homes, from airports, etc. and able to easily share a plethora of content before, after or while on the call.