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If you think a small amount of constant thrust doesn't matter, you need to expand your knowledge of astronavigation.
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I am well aware of the benefit of low gee constant acceleration, complete with mid-journey flipover. I've read Heinlein as a kid, used the math in RPGs as a teen, and fly ion powered probes in KSP now.
I'm more skeptical Tex, because now they are making claims that the fucking thing formed a warp bubble or something. When the Hadron Collider made such a claim, it was later revealed to be sloppy time measurement that caused the erroneous report of FTL sub-atomic particles. I hate sloppy work in precision measuring, and will await something other than a table-top demonstration to award my admiration to this new idea.
Another factor for deep space, where the benefit of this on long duration flights would be most likely to be used, a huge amount of energy would be needed to push something. Let's be a little aggressive and call one tenth of a gee as a target number. So far they are below this mark by several orders of magnitude, with available power from the wall. In deep space, solar isn;t going to work, and for a crew, you'd need to have enough shielding in one form or another to protect a crew from a radioactive power source, adding more mass.
If proven out, there may be some niche missions where this could be used, but we are still a very long way from finding the road to the stars.