It’s not every day one gets to write a paper that includes such excerpts as:

[the] structure would be assembled in space near the sun by an army of robots and built out of space-based materials

while talking about small black holes, Dyson spheres, and the possibility of re-purposing SETI as a means of detecting the telltale gravitational waves of and/or the gamma emissions from poorly collimated exhaust of ships built to these theoretical specifications. But, when you do touch on all that, you generally get to include this line:

In the epilogue, we discuss possible philosophical ramifications of this observation.

Science!

Incidentally, in the 23rd century, Scotty frequently raged about this part of the paper:

A microscopic particle of ordinary matter which drifted into the antimatter would cause an explosion, scattering the antimatter into contact with the ship, and destroying everything for millions of miles around.

while (typically and completely) ignoring this part:

Any electromagnetic force which held the antimatter in would also drive normal matter in.

Best to stay the hell away from the Engineering deck, then. Somewhere on the order of millions of miles away. Good to know. <hand_gestures> Good. to. know! </hand_gestures>