User blog comment:Harmonmj14/Operation: Noah's Ark/@comment-10905876-20160114161107/@comment-10905876-20160115010158

Which could still cause problems for TATO. Not to mention the ENORMOUS cost of such an installation. Hence me putting the timeframe for fortifying and being able to actually mount a counter assault being in centuries vs years or even decades. An Ort Cloud or Kuiper Belt distance defense grid would have to form a loose Dyson Sphere to be effective, and a massive one at that. It would be financially impossible for a lone nation to fund such a project, unless they had an entire planet's worth of resources available. Hence, I doubt the feasibility of a Sol System based defense grid.