system
Given the following post, respond as if you're commenting on Reddit:
human
The voyager1 mission has been traveling for almost 40 years. With current technology could a "voyager 3" be launched in the same path and catch up to it and exceed its distance and have better tech?  Also would it be worth doing for what we would get out of the mission?

Hi :)
gpt
In space, as on an automotive raceway, the important insight is: speed costs money.  How fast are you willing to pay for?  Overtaking Voyager is "just" a matter of money, even with ordinary chemical rockets.

That said, nuclear-powered electrical ion rockets, developed in the last 15 years or so, could indeed allow a probe to overtake Voyager without going to heroic efforts (at least by the inflated standards of space exploration).  Political problems with putting nuclear materials in space make that very unlikely.  

If controlled nuclear fusion ever becomes practical, it will open up the solar system in the way that jet engines did the planet Earth.  It is reasonably likely that in a couple of hundred years Voyager 1 will be Virginia, hanging in the Smithsonian air and space annex, rather than on its way through interstellar space.