Star Wars, Episode VIII, Reagan fights back

Star wars, known officially as Strategic Defense Initiative, was one of Reagan's programs that he created during his presidency. Fundamentally, it was anti missile technology that the US would have the ability to use if they ever needed to possibly shoot down Soviet Union nuclear warheads before they even got into threatening reach of the United states.
Pros (America's view) - Would be the ultimate safety technology that would give America a massive upper hand in the cold war. Would mean that MAD wouldn't be possibly is America struck first, because we would be able to defend ourselves.
Cons (Soviet Union's view) - Taking the cold war and arms race into space, that was really no man's territory. Was very costly, which to the Soviet Union meant they would not be able to compete because of their lacking economy. Escalated tension immensely if this were to go through, because the Soviet's would pretty much be at the mercy of America.
My view point - I think this was reaching a lot for Reagan to think this would be able to be possible. It just doesn't really say "practical" in many ways. The cost would be insane, the technology isn't even there yet, the entire space aspect of it is such a variable. I just don't think it would really ever be able to happen, and because of that I think everyone over reacted a bit in response to this.
What actually happened is that nothing was really ever created that came close to Reagan's dream of being able to shoot missiles out of the sky from space, but never the less a pretty cool idea.