Hi Bill and members,
I remember in one of the episode of Stratosphere Lounge Bill remarking about space travel for the Colonies. And how his world might be stuck with sub-light speed travel. Well, there is a great Youtube channel, you may already know of it, called Anton Petrov. I enjoy his work because he gives links to actual studies regarding space and engineering. This was one from last week about warp bubbles that I thought everyone would find interesting if you missed it. The link to the company he mentions is linked below his video.
Joseph