Come on, such a thing would allow for reasonable space travel even better than for just making colonies. It is essentially Mass Effect Element Zero - you could

Come on, such a thing would allow for reasonable space travel even better than for just making colonies. It is essentially Mass Effect Element Zero - you could create gravity wells for things to "fall into", creating enormous accelerations of space ships while at the same time protecting the crew from the effects. Potentially even a kind of faster than light travel. As a side boon new kinds of materials can be created in extreme artificial gravity conditions some this maps to extreme and impossible to achieve otherwise pressures. Including just creating stars in a controlled environment making for immense energy availability. Instead of magnetic fusion containment you'd have gravitational fusion containment. This is how powerful practically breaking gravity can be.